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5 from 8 votes

The Best No Bake Peppermint Slice Recipe

This easy no bake Peppermint Slice takes no time at all to make and is perfect for cake stalls, parties and is a great after dinner mint too! Both regular and Thermomix instructions included.
Prep Time15 mins
Cook Time2 hrs
Total Time2 hrs 15 mins
Servings: 24 pieces


  • 100 g butter
  • 200 g of condensed milk
  • 200 g block of peppermint chocolate
  • 250 g of plain biscuits
  • 400 g of white chocolate 2 blocks
  • 4 peppermint crisp bars


  • Line a 28 x 18 cm slice tin with baking paper, making sure that you leave plenty hanging over the sides to help your remove the slice once it has set.
  • Crush the biscuits either by using a food processor or a rolling pin until they resemble fine crumbs. Transfer to a large bowl.
  • Roughly chop ALL of the peppermint crisp bars and add HALF of the chopped pieces to the bowl with the biscuit crumbs. Set the remaining pieces aside for later.
  • Break the peppermint chocolate into squares and place it along with the butter (which has been cut into cubes) into a microwave safe bowl and cook for 30 second spurts on a medium high heat until melted.
  • Add the melted chocolate mixture and the condensed milk to the bowl with the crushed biscuits and use a large spoon to mix to combine.
  • Pour the mixture into the slice tin, and use the back of your metal spoon to press it down into the tray, creating a flat surface.
  • Break the white chocolate into squares and place into a microwave safe bowl. Cook for 30 second spurts until melted and then pour over the peppermint slice and top with the remaining peppermint crisp pieces.
  • Place the slice into the fridge to set, and after approximately 2 hours, remove and cut into small slices


You can use any type of plain biscuits for this recipe, I usually use Marie or Arrowroot biscuits.
The mixture will be quite sticky when you are transferring this slice into the tin, I find it helpful to use two spoons to help me spread it across the tin.