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close up of no bake lemon slice pieces stacked in a pyramid
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4.88 from 8 votes

No Bake Lemon Slice

This No Bake Lemon Slice is made using just five basic ingredients and takes less than 10 minutes to put together! Both regular and Thermomix instructions are included.
Prep Time10 mins
Chilling Time2 hrs
Total Time2 hrs 10 mins
Course: Desserts
Cuisine: Australian
Keyword: No Bake Recipes, No Bake Slice, Slices
Servings: 24 pieces
Calories: 144kcal
Author: Lauren


  • 18x28cm Slice Tin


  • 50 grams butter
  • 395 grams sweetened condensed milk
  • 1 tablespoon lemon juice
  • 250 grams Marie Biscuits see notes
  • ½ cup desiccated coconut 40 grams

Lemon Icing

  • 1 ¾ cup icing sugar
  • 2 tablespoons lemon juice
  • 1 -2 teaspoon boiling water


  • Line a slice tin (18x28cm) with baking paper, ensuring you leave paper hanging over the sides to help remove the slice once set.
  • Crush the biscuits and set aside until needed.
  • Chop the butter into small pieces and cook in 30 second spurts in the microwave until just melted.
  • In a large bowl, add crushed biscuits, melted butter and remaining slice ingredients and mix well to combine - please note the mixture will be sticky.
  • Pour the mixture into the baking tray, and using metal spoon, push the mixture firmly and evenly across the tray.

Thermomix Instructions

  • Line a slice tin (18x28cm) with baking paper, ensuring you leave paper hanging over the sides to help remove the slice once set.
  • Place the biscuits inside your Thermomix bowl and crush for 5 seconds on speed 9. Pour the crushed biscuits into a separate bowl and set aside.
  • Add the butter to your bowl (no need to clean it) and cook for 2 minutes at 60 degrees on speed 2.
  • Add the condensed milk, lemon juice, coconut and biscuits to the bowl and mix for 15 seconds on speed 4, or until combined. Use your spatula to help scrape the sides of your bowl mid way through mixing.
  • Pour the mixture into your prepared slice tin and use the bad of metal spoon to spread it across the tin.

Lemon Icing

  • Place the icing sugar into a bowl and add the lemon juice.
  • Slowly add the hot water until the desired icing consistency is achieved.
  • Pour over the slice immediately and place in the fridge for 1 -2 hours or until set.
  • Cut into small squares to serve.


  • You can use any type of plain/digestive biscuit for this recipe, I used Arnott's Marie Biscuits in the recipe pictured.
  • Coconut Condensed Milk can be used in place of Sweetened Condensed Milk if you wish.
  • You can use a food processor, Thermomix or the end of a rolling pin to crush the biscuits.
  • This slice is best stored in an airtight container in the fridge and enjoyed within 10 days.
  • To freeze, place in a freezer safe container and store for up to three months.


Serving: 0g | Calories: 144kcal | Carbohydrates: 26g | Protein: 2g | Fat: 4g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Cholesterol: 6mg | Sodium: 74mg | Potassium: 90mg | Fiber: 1g | Sugar: 21g | Vitamin A: 48IU | Vitamin C: 1mg | Calcium: 52mg | Iron: 1mg