Skip to main content
birds-eye view of Mars Bar Squares and Mars Bars
15Prep Time
16Serves
Easy

Mars Bar Cakes

Quick and easy

50 Reviews

About the bake

The humble Mars Bar Slice is definitely a retro childhood favourite and a fantastic rainy day bake to make with the family (no matter what their age). A chewy gooey cereal base blended with melted Mars Bars and topped with milk chocolate and white chocolate swirls - what's not to love?

Find out below how to make mars bar squares. 

15Prep Time
16Serves
Easy

Method

  1. Step 1:

    Prepare a 20cm square baking tin, by lightly greasing it and lining it with baking paper.

  2. Step 2:

    In a heatproof bowl, heat the butter, golden syrup and 3 of the chopped Mars Bars until they have melted. Don't worry if the Mars Bars do not full melt at this point. 

  3. Step 3:

    Add the Rice Krispies into the bowl and stir in with the remaining Mars Bar.

  4. Step 4:

    Pour the mixture into the baking tin and press down firmly (we used a potato masher for this)

  5. Step 5:

    In another heatproof bowl, melt the milk chocolate, stirring until smooth, then pour over the top of the Krispie mixture. 

  6. Step 6:

    Moving quickly before the milk chocolate sets, melt the white chocolate and drizzle in lines up and down the surface of the Mars Bar slice. Using a skewer, drag forward and back through the mixture to create a feathered effect.

  7. Step 7:

    Place the baking tin in the fridge to chill and set. Remove a little while before you plan to serve so that it is easier to cut into squares.

Ingredients

    • 100g Butter (unsalted, softened)
    • 4 Mars bars (chopped)
    • 1 1/2 tbsp Silver spoon golden syrup
    • 150g Rice krispies
    • 350g Milk chocolate
    • 50g White chocolate

Utensils

  • 20cm square baking tin
  • Parchment paper

Great recipes and more at BakingMad.com

Exclusive gifts and kits to take your baking to the next level Competitions and baker of the month prizes More than 1,000 recipes to try.