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4.91 from 11 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.