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Mint bars in a stack.
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Peppermint Traybake

This no-bake Peppermint Traybake has a no-bake chocolate base, minty green middle layer and a soft chocolate topping. Perfect for an after-dinner treat!
Course Dessert
Cuisine American
Prep Time 30 minutes
Chill Time 3 hours 30 minutes
Total Time 4 hours
Servings 24 squares
Calories 189kcal

Ingredients

Base Layer

  • 250 g (1 packet / 8.8 oz.) digestive biscuits, or Marie biscuits
  • 3 Tbsp unsweetened natural cocoa powder
  • 113 g (1 stick / 1/2 cup) unsalted butter, melted
  • 1/3 cup whole milk

Peppermint Layer

  • 2 Tbsp unsalted butter, softened to room temperature
  • 2 1/2 cups powdered sugar / icing sugar
  • 2 1/2 tbsp water
  • 2 tsp peppermint extract
  • 5 drops Green food colouring, optional

Chocolate Topping

  • 1 3/4 cups powdered sugar
  • 3 Tbsp unsweetened cocoa powder
  • 45 g unsalted butter, melted
  • 2 Tbsp boiling water

Instructions

Base Layer

  • Line Baking Pan: Line a 7 x 11 inch rectangle baking pan with parchment paper. Set aside.
  • Crush Biscuits: In a high-speed food processor, crush biscuits to a crumb. Transfer to a large mixing bowl.
  • Add Cocoa: Stir through the cocoa powder with a wooden spoon or silicone spatula.
  • Mix Wet Ingredients: Add the melted butter and milk. Mix until well combined and it sticks together.
  • Press into Pan: Firmly press the mixture into the lined pan. Use the back of a spatula, a wooden spoon, or your hands to ensure the base is compact. Set aside at room temperature, do not place in the fridge.

Peppermint Layer

  • Beat Butter & Sugar: In a stand mixer with the whisk or paddle attached, or a in large mixing bowl with an electric hand beater, start by adding softened butter and one cup of the powdered sugar. Beat on low-medium speed for about 15-20 seconds until the mixture becomes crumbly.
  • Add Remaining Sugar, Water & Extract: Gradually add the remaining powdered sugar, along with the water and peppermint extract. Continue beating on medium speed for about 30 seconds, until everything is well combined.
  • Incorporate Color: Add food coloring and beat on high speed for 10-20 seconds, until creamy and fluffy and the color is evenly distributed throughout the mixture.
  • Spread Over Base: Carefully spoon the peppermint mixture over the prepared base layer. Use an offset spatula or silicone spatula to evenly spread it out.
  • Chill to Set: Place the tray in the refrigerator and let it chill for 30 minutes, or until the layer is just set to the touch.

Chocolate Topping

  • Sift: Sift the powdered sugar and cocoa powder into a medium-sized mixing bowl to ensure no lumps.
  • Add Liquids: Pour in the melted butter and boiling water. Whisk until the mixture is smooth and thick.
  • Spread Topping: Pour and spread the topping over the chilled middle layer, using an offset spatula or silicone spatula.
  • Set in Refrigerator: Place the slice into the refrigerator to set for 2-3 hours or until the topping and entire slice is set and firm.
  • Slice: Once set, cut the peppermint slice into squares enjoy!

Notes

  • Store: Store the slice in an airtight container in the refrigerator for up to 1 week. 
 
  • Freeze: For longer storage, wrap the entire slab or individual slices in cling film, then place in a freezer-safe bag or container. It can be frozen for up to 3 months.
 
  • Thaw: Thaw the slices in the refrigerator overnight. For quicker thawing, leave them at room temperature for a few hours until they are soft enough to eat.

Nutrition

Calories: 189kcal | Carbohydrates: 30g | Protein: 1g | Fat: 8g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 0.3g | Cholesterol: 17mg | Sodium: 57mg | Potassium: 45mg | Fiber: 1g | Sugar: 24g | Vitamin A: 199IU | Calcium: 16mg | Iron: 1mg