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Member recipe

Mars Bar Crispy Cake

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(4 ratings)

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Serves 6

Very simple recipe, fun to make with the kids. Taught by my mother.

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  • 120g Margarine
  • 4 Mars Bars or a supermarket equivalent
  • 150g Milk chocolate
  • 300g Rice Crispies or a supermarket equivalent


    1. Cut the Mars Bars into small slices and melt with the margarine in a glass bowl over a saucepan of boiling water.
    2. Take off the heat and mix in the Rice Crispies one cup at a time until the mixture is only slightly gooey.
    3. Spoon the mixture into a tray and spread out evenly.
    4. Heat up the milk chocolate in a glass bowl and spoon evenly over the Crispies.
    5. Leave to cool slightly then place in the fridge for a few hours until set.

Comments, questions and tips

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Karen Marks's picture
Karen Marks
21st Feb, 2018
4 mars bars from a pack of 7... 150g rice crispies and minimum 200g choc! Insane measurements BBC!!
Maggie Gardiner's picture
Maggie Gardiner
21st Dec, 2017
This recipe gives no weight for the Mars Bars . They come is a variety of sizes & weights. Think I’ll look elsewhere.
3rd Apr, 2017
Measurements are totally off! As others have said, half the rice crispies and double the chocolate - or double the mars bars and quadruple the chocolate. Also the nougat in the mars bar does not melt well in a bain marie and I had to whisk it over the heat until it melted as it was super lumpy! I would leave the crispies to set for more time than recipe states too or they mix in with the chocolate topping.
8th Mar, 2017
Measurements are all wrong. As other commenters have stated there are too many Krispies, far too little chocolate even with 250g! Frustrating as was making for a bake sale.
28th Feb, 2016
This recipe doesn't make any sense, half the amount of rice crispies and at least double the amount of milk chocolate!
18th Jul, 2015
Lol "serves 6" Definitely serves more than 6! And I found using 4 mars bars, 120g margarine and 240g of rice crispies done me better :)
17th Mar, 2015
What size Mars Bars? This could make a very big difference!
7th Dec, 2014
Not enough chocolate for the topping we used 600 gms and 250 of rice krispies
20th Nov, 2014
Seemed too many Rice Krispies for the Mars bars had to use less and also not enough milk chocolate for the topping so add extra
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