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Home » Baking » Pies & Tarts

Cornflake Tart with Fresh Raspberries

September 25, 2022 by Jane Saunders Leave a Comment

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Sliced up school cornflake tart with text overlay.
A slice of school cornflake tart with custard plus text overlay.
Sliced syrup cornflake tart with text overlay.
Sliced syrup cornflake tart with text overlay.

Cornflake tart is a nostalgic pudding for many people in Britain who endured school dinners during their childhood. Making your own cornflake jam tart is very easy.

Classic treacle cornflake tart served with custard and fresh rapsberries.

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Contents hide
1 What is school cornflake tart?
2 What makes this recipe extra special
3 Ingredients
4 How to make cornflake tart
5 Expert tips
6 Frequently asked questions
7 Variations
8 Serving suggestions
9 More British tarts to snuggle up with
10 Recipe
11 Cornflake Tart with Fresh Raspberries

If like me, you grew up and went to school in the 1970s, you most likely endured or even occasionally enjoyed school dinners. And it’s quite possible that you might well remember cornflake tart rather fondly. A slice of sweet treacle cornflake tart with a sticky layer of jam and copious amounts of custard was definitely one of the highlights for me.

Well, the good news is that this nostalgic food memory can easily become a modern-day reality in your own kitchen. School cornflake tart is incredibly easy to make yourself.

What is school cornflake tart?

It’s pretty unforgettable, but for those of you who need reminding what cornflake tart is picture this:

  • A crisp shortcrust pastry shell.
  • A layer of fruity red jam.
  • And a generous topping of syrupy cornflakes.

It was sweet and sticky… so very sweet and sticky. Now you’re with me! Was it mandatory for you to drown your slice of cornflake jam tart in copious amounts of custard too, or was that just me?

Custard being poured over a classic British childhood school pudding.

Alternative names for this classic school pudding include cornflake pie, treacle cornflake tart, cornflake jam tart and cornflake & jam tart.

Where did cornflake pie originate from? Nobody really knows. It’s often associated with the North of England, but there’s no definitive proof of this. As for when it was invented, it’s definitely post-war but this pudding was in its heyday in the 1970s and 1980s – that was primetime for me and school dinners.

Have you seen my recipes for cornflake slices and Australian crunchie? They make great use of cornflakes too. And if you’re thinking that the topping of this cornflake jam tart sounds familiar, it’s because it is – cornflake cakes are another great childhood classic.

What makes this recipe extra special

This recipe for school cornflake tart is fairly traditional, although I’ve made one small but monumental change. Instead of including just jam in that fruity middle layer, I’ve also incorporated fresh raspberries. This modification lifts the dessert entirely.

Without the fresh fruit, this treacle cornflake tart is incredibly sweet. I’d argue that for many adults it might verge on being too sweet.

However, the raspberries add a burst of freshness and they help to tone down the sweetness of that jammy centre. It’s a terrific addition to the traditional recipe resulting in the ultimate cornflake pie.

Ingredients

Labelled ingredients for a classic British school dinner pudding.

Cornflakes: these are an integral part of this recipe, so I’m going to be upfront with you. I am a certified cornflake snob. Only Kellogg’s cornflakes will do. They are so much more crispy, crunchy and somehow tastier than any own brand I’ve had the misfortune to taste. Sorry. However, feel free to have an opposing view and go with your favourite brand instead (at your peril).

Golden Syrup: accept no substitutions here. No honey. No maple syrup. No agave. Golden syrup has a unique quality about it, delivering a very mellow, sweet and sticky flavour with butterscotch undertones. It’s exceedingly British and well worth every penny you spend on it.

Please do not ever consider subbing in black treacle, it’s an entirely different specie that is highly delicious but entirely unsuitable for this treacle cornflake tart.

Sugar: note that caster sugar is required for the shortcrust pastry case and light brown sugar is needed for the syrupy cornflake topping of this nostalgic tart. The latter adds an extra depth of flavour to those sticky flakes of cereal.

Butter: assuming there are no dietary requirements preventing the use of butter, this is the best option for the fullest flavour in both the pastry and the cornflake topping. If you need to go dairy-free with the fat then add in ⅛ teaspoon salt to both the pastry and topping mixture.

Raspberries: these are entirely optional. They are by no means part of the classic cornflake jam tart recipe but, in my opinion, they do make this recipe so much better, especially for adult palettes. Leave them out if you want to stay strictly old-school.

Raspberry Jam: it’s really debatable as to whether the school cornflake pie recipe stipulates strawberry jam or raspberry jam. However, since I’m advocating the use of raspberries to tone down the sweetness of this recipe for cornflake pie, I’m recommending raspberry jam.

You can, of course, sit on the fence by mixing the two – use fresh raspberries and blend with strawberry sauce (why have I only just thought of that?). Whatever flavour jam you pick, go for the best quality you can afford and aim for one with at least a 50% fruit content for the best of fruity flavours.

How to make cornflake tart

  1. Put the flour, sugar and salt together in a bowl and stir.
  2. Rub in the butter.
  3. Make a well in the centre and add the egg yolk along with 2 tablespoons of ice-cold water. Beat them briefly to combine then use a blunt knife to mix them into the flour mixture.
Collage of images showing shortcrust pastry being made.
  1. Use your hands to push the mixture together to form a dough.
  2. Knead briefly on a lightly floured worktop until smooth (30 seconds).
  3. Shape into a disc, wrap in clingfilm and chill in the fridge for 30 minutes.
  4. Roll the pastry out to a thickness of 2-3mm and use it to line an 8-inch tart tin. Prick the base with a fork and chill for 30 minutes.
  5. Line the pastry with parchment paper, fill to the top with dried pulses (e.g lentils and small beans) and bake for 20 minutes at 180C/ 350F/ GM4.
  6. Turn the heat down to 160C/ 310F/ GM 2 ½, remove the beans and parchment and bake for a further 20 minutes.
Collage of images for making a classic British school dinner pudding with pastry.
  1. If including fresh raspberries, roughly chop them, sieve 1 teaspoon of flour over them and cook, stirring constantly, until the fruit breaks down and turns jammy as the juice evaporates.
  2. Remove from the heat, stir in the raspberry jam and set aside.
  3. Now melt the butter, golden syrup, sugar and salt in a medium-sized saucepan. Do so gently, allowing the sugar to dissolve.
  4. Stir in the cornflakes, mixing until they are all covered in the syrupy sauce.
  5. Spoon the jammy mixture over the bottom of the pastry case and top with the cornflakes, spreading them out (no need to press them down too firmly though).
  6. Bake for 10-15 minutes until the cornflakes just begin to take on a little colour.
  7. Let your cornflake pie cool for around 45 minutes before slicing into it.
Collage of images showing the filling being made for a classic British pudding from school dinners.

Expert tips

This nostalgic old-fashioned school cornflake tart recipe is easy but there are a few tips and tricks to get the best result:

  • Use digital scales and gram measurements as it’s the most accurate way to measure ingredients (the cup measuring system is incredibly imprecise, so I do not recommend it.
  • Feel free to use readymade shortcrust pastry if you don’t have the time or inclination to make your own. You’ll need around 300g for this recipe.
  • When making the pastry use cold butter to ensure that the pastry does not get too warm. It will be much easier to handle as a result.
  • Dark metal heavy baking tins are better at absorbing heat than light-coloured tins.
  • The dough must be chilled before rolling out and again once the tin has been lined with it. Pastry that has not been chilled will, most likely, shrink significantly.
  • Blind baking the pastry case is essential to avoid a soggy-bottomed tart.
  • Put a baking sheet into the oven whilst it is heating up then sit the tart tin directly onto it whilst the pastry is blind baking and again when the filling has been added. This technique allows direct heat to get to the base of the tart which helps to reduce the risk of a soggy bottom.
  • Pick the best quality jam that you can afford. Look at the fruit content of the jam and select the one with the highest amount of fruit per 100g of jam – aim for at least 50%.

Frequently asked questions

Can I make it gluten-free?

Yes. To do so ensure that you make gluten-free shortcrust pastry and use gluten-free cornflakes. Replace the small amount of flour used to thicken the fresh raspberries with cornflour, which is naturally gluten-free.

How can I make a vegan cornflake tart?

Simple. Use vegan block butter in place of regular butter and omit the egg yolk from the pastry dough, adding an extra tablespoon of water to help bind the ingredients together. Also, ensure that you select vegan cornflakes (a lot are not as they contain vitamin D derived from animals).

It’s also worth checking that the sugar you are using is also vegan as some are not (most in the UK are).

How should treacle cornflake tart be stored?

This tart is best stored at room temperature and eaten on the day it is made. The cornflakes do turn stale relatively quickly.

Sadly, this school cornflake tart does not freeze well.

Variations

Fancy ringing the changes on your treacle cornflake tart? Here are my musings:

  • Go totally old-school and leave out the fresh raspberries – add in an extra 1-2 tablespoons of raspberry jam though… and perhaps prepare for toothache.
  • Opt for strawberry jam instead of raspberry (even if including the fresh raspberries – they’re a match made in heaven).
  • Thinking of changing cornflakes for crunchy nut cornflakes? Think twice. Crunchy Nut cornflakes are incredibly sweet and I fear that they would be overkill alongside that golden syrup sauce. Be wiser and instead chop some almonds and mix them into the cornflake topping.
  • Similarly, don’t be tempted to use Frosties – again, they are far too sweet alongside the other ingredients.
  • Desiccated coconut would, however, be a worthy addition to this cornflake jam tart. Mix 2 tablespoons into the topping.
  • You could, of course, use this recipe to make 12-18 mini tarts. Use mince pie sized bun tins and cook for less time (blind bake for around 15 minutes in total, then 10 minutes more once filled).

Serving suggestions

A cornflake tart with jam and fresh raspberries sliced and ready to serve.

Cornflake jam tart is best served slightly warm with a generous glug of custard on top. Please forget notions of ice cream or whipped cream. It has to be custard – I’m sure it’s law in the school dinners rule book.

Feel like embracing the inner child buried deep inside of you who’s bursting to get out? Then douse your slice of cornflake pie with ultra retro pink custard.

More British tarts to snuggle up with

Coconut Tart with Raspberry Jam
Check out this recipe
Close-up of a sliced coconut tart with jam.
Blackberry and Almond Frangipane Tart
Check out this recipe
Close up of almond frangipane tart with blackberries
Buxton Pudding
Check out this recipe
Close up photo of Buxton pudding with a slice cut.
Mincemeat tart with Frangipane
Check out this recipe
Mincemeat tart with frangipane - featured image

Have you made this school cornflake tart recipe? What did you think of it? Please leave a rating and/ or comment below. I always love to hear how my readers get on with my recipes.

Recipe

Close-up of school cornflake tart sliced and served with frsh raspberries.

Cornflake Tart with Fresh Raspberries

Jane Saunders
Cornflake tart is a nostalgic pudding for many people in Britain who endured school dinners during their childhood. In fact, for most, treacle cornflake tart with a sticky layer of jam and copious amounts of custard was the highlight.
5 from 2 votes
Print Pin Rate
Course: Dessert, Pudding
Cuisine: British
Diet: Vegetarian
Prep Time: 30 minutes
Cook Time: 55 minutes
Total Time: 1 hour 25 minutes
Servings: 8
Calories: 355kcal

Equipment

  • 1 8-inch tart tin around 1½ inches deep and preferably loose-bottomed
Prevent your screen from going dark

Ingredients

For the Shortcrust Pastry

  • 180 g Plain flour
  • 30 g Caster sugar
  • 90 g Butter cold
  • ¼ teaspoon Salt
  • 1 Egg yolk large, free-range
  • 2 tablespoons Water ice-cold

For the Jam and raspberry centre

  • 100 g Raspberries fresh, do not use frozen or defrosted fruit
  • 3 tablespoons Raspberry jam add an extra 1-2 tablespoons if not using fresh raspberries

For the Cornflake Topping

  • 50 g Butter
  • 100 g Golden syrup
  • 30 g Light brown sugar
  • Salt – a pinch
  • 100 g Cornflakes

Instructions

Make the Pastry

  • Put the flour, sugar and salt together in a bowl, stir then rub in the butter until the mixture resembles breadcrumbs.
  • Make a well in the centre of the mixture and add the egg yolk along with 2 tablespoons of ice-cold water. Beat them briefly to combine then use a blunt knife to mix them into the flour mixture.
  • Use your hands to gently push the ingredients together to form a dough.
  • Knead briefly on a lightly floured worktop until smooth (30 seconds).
  • Shape into a disc, wrap in clingfilm and chill in the fridge for 30 minutes.
  • Roll the pastry out to a thickness of 2-3mm and use to line an 8-inch tart tin.
  • Prick the base with a fork and chill for 30 minutes. Meanwhile, put a flat baking sheet inside of the oven and preheat the oven to 180C/ 350F/ GM4.
  • Line the pastry with parchment paper, fill to the top with dried pulses (e.g lentils and small beans) and place on the baking sheet inside of the oven. Bake for 20 minutes.
  • Turn the heat down to 160C/ 310F/ GM 2 ½, remove the beans and parchment and bake for a further 20 minutes. Set aside. Leave the oven on at this heat.

Make the Jam Centre (if using fresh raspberries)

  • Roughly chop the fresh raspberries, sieve 1 teaspoon of flour over them and cook in a small pan, stirring constantly, until the fruit breaks down and turns jammy as the juice evaporates.
  • Remove from the heat, stir in the raspberry jam and set aside.

Make the Cornflake Topping

  • Melt the butter, golden syrup, sugar and salt in a medium-sized saucepan. Do so gently, allowing the sugar to dissolve.
  • Stir in the cornflakes, mixing until they are all covered in the syrupy sauce.

Assemble and Bake

  • Spoon the jammy mixture over the bottom of the pastry case (if just using jam, spread 4-5 tablespoons over the pastry case base instead).
  • Top with the cornflakes, spreading them out (no need to press them down too firmly though).
  • Bake for 10-15 minutes until the cornflakes just begin to take on a little colour.
  • Let the tart cool for around 45 minutes before slicing into it. Cornflake tart is best served just warm rather than hot.

Notes

  • Use digital scales and gram measurements as it’s the most accurate way to measure ingredients (the cup measuring system is incredibly imprecise, so I do not recommend it.
  • Feel free to use readymade shortcrust pastry if you don’t have the time or inclination to make your own. You’ll need around 300g for this recipe.
  • When making the pastry use cold butter to ensure that the pastry does not get too warm. It will be much easier to handle as a result.
  • Dark metal heavy baking tins are better at absorbing heat than light-coloured tins.
  • The dough must be chilled before rolling out and again once the tin has been lined with it. Pastry that has not been chilled will, most likely, shrink significantly.
  • Blind baking the pastry case is essential to avoid a soggy-bottomed tart.
  • Put a baking sheet into the oven whilst it is heating up then sit the tart tin directly onto it whilst the pastry is blind baking and again when the filling has been added. This technique allows direct heat to get to the base of the tart which helps to reduce the risk of a soggy bottom.
  • Pick the best quality jam that you can afford. Look at the fruit content of the jam and select the one with the highest amount of fruit per 100g of jam – aim for at least 50%.
  • To make a gluten-free cornflake tart, ensure that you make gluten-free shortcrust pastry and use gluten-free cornflakes. Replace the small amount of flour used to thicken the fresh raspberries with cornflour, which is naturally gluten-free.
  • To make vegan cornflake tart use vegan block butter in place of regular butter and omit the egg yolk from the pastry dough, adding in an extra tablespoon of water to help bind the ingredients together. Also, ensure that you select vegan cornflakes (alot are not as they contain vitamin D derived from animals). It’s also worth checking that the sugar you are using is also vegan as some are not (most in the UK are).
 
Storage
This tart is best stored at room temperature and eaten on the day it is made. The cornflakes do turn stale relatively quickly.
Sadly, this school cornflake tart does not freeze well.

Nutrition Per Serving (Approximate)

Calories:355kcal | Carbohydrates:52g | Protein:4g | Fat:15g | Saturated Fat:9g | Polyunsaturated Fat:1g | Monounsaturated Fat:4g | Trans Fat:1g | Cholesterol:62mg | Sodium:282mg | Potassium:81mg | Fiber:2g | Sugar:23g | Vitamin A:697IU | Vitamin C:7mg | Calcium:19mg | Iron:5mg
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