retro recipes for the modern baker

Marshmallow Fudge Traybake

Warning: this Marshmallow Fridge Traybake is very sweet, very gooey and very delicious! It’s got a digestive and coconut biscuit base that is topped with caramel and marshmallow and delivers a serious sugar rush.

It’s another no-bake traybake and although it takes a bit of time to cook the caramel layer, it’s pretty easy to put together. And very quick to disappear in our house. It’s also a useful recipe to have as it uses up the remainder of a tin of condensed milk that you may have opened for another recipe.

Second warning: this is really sticky to work with, especially when you get to the marshmallow swirl, so my advice is to work quickly and be prepared to get melted marshmallow stuck to places other than the caramel layer.

Ingredients

Base

5oz/145g butter

2oz/55g granulated sugar

1 egg, lightly beaten

1 tsp vanilla extract

8oz/225g digestive biscuits (graham crackers), crushed

3oz/85g desiccated coconut

Topping

4oz/110g butter

4oz/110g light brown sugar

2 tbsp golden syrup (or use honey or maple syrup)

4 tbsp condensed milk

4 marshmallows

Method

  1. Place the butter and sugar in a saucepan and heat gently until the butter has melted.
  2. Add the beaten egg, vanilla, biscuit crumbs and coconut and mix well.
  3. Press into a lined tin (I used my 8″/20cm square tin) and chill in the refrigerator for at least 30 minutes, until firm.
  4. Meanwhile, place the butter, sugar, syrup and condensed milk for the topping into a saucepan.
  5. Heat gently until the butter has melted, then bring to a boil and simmer for 7 minutes, stirring frequently.
  6. Melt the marshmallows, either in short bursts in a microwave or in a bowl over a pan of simmering water.
  7. Pour the caramel over the biscuit base, then drizzle (OK, maybe more of a drop than a drizzle, it is super sticky!) the melted marshmallows over the top. Pull a skewer through the topping to create a swirled pattern.
  8. Leave to set, then slice into squares and enjoy!

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3 Comments

  1. Pixie

    Me again! (I’m working my way through your traybake recipes so you may hear from me again lol)
    I was wondering what texture the topping is when it’s ready to pour onto the base?
    Once I took mine out of the tin, after about ten minutes it just all melted off the sides. Don’t get me wrong, it tastes great! I just need to eat it with a spoon. Lol
    I am also using vegan condensed milk, so was thinking it might need a bit longer to get to the texture it should be at.

    • CJ

      Firstly, keep the questions coming. I don’t mind!

      I have no experience with vegan condensed milk – I’ll have to try it some time to compare – but it might need cooking a little longer? The topping should be thick but pourable. Does that help?! Glad it tastes good though!

      • Pixie

        Ah yeah. I would not have described my topping as thick but pourable. lol
        I’ll give it another go this weekend and see how it turns out! Thanks!

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