Why You’ll Love This Recipe

I love this recipe because it’s easy, elegant, and indulgent without being complicated. The layers of dark chocolate and cool peppermint filling create that perfect melt-in-the-mouth texture. It’s also a great make-ahead dessert — I can prepare a batch in advance, keep them chilled, and have them ready whenever I want to impress guests or enjoy something sweet.

Ingredients

(Note: All ingredient amounts are listed in the recipe card below.)

375 g Dark chocolate melts
2 1/2 cups Pure icing sugar
1 tbsp Vegetable oil
2 tbsp Milk
1/4 tsp Peppermint essence

Directions

I start by greasing a 6 cm-deep, 20 cm square cake pan, then lining the base and sides with baking paper, leaving a 3 cm overhang on all sides to help lift the mints out later.

Next, I place half of the dark chocolate melts in a microwave-safe bowl and heat them on high for 1–2 minutes, stirring every 30 seconds, until smooth. I pour the melted chocolate over the base of the prepared pan, spreading it evenly, and refrigerate for about 15 minutes until set.

Meanwhile, I sift the icing sugar into a microwave-safe bowl. I stir in the vegetable oil and milk to form a thick paste, then microwave the mixture on high for 2–3 minutes, stirring every 30 seconds, until it becomes smooth. I stir in the peppermint essence and let the mixture cool slightly for about 2 minutes. If it seems too thick, I add another tablespoon of milk to loosen it.

Once ready, I pour the peppermint mixture over the set chocolate layer and use a spatula to spread it evenly. I refrigerate again for about 15 minutes, just until it’s starting to firm up.

I melt the remaining dark chocolate melts in the same way as before, then pour the melted chocolate over the peppermint layer. I spread it smoothly and refrigerate the pan again until the chocolate is fully set.

To serve, I lift the set chocolate slab from the pan using the baking paper and cut it into neat squares with a warm knife.

Servings and Timing

This recipe makes 25 squares.
Prep Time: 50 minutes
Cook Time: 10 minutes
Total Time: 1 hour

Variations

I sometimes use white chocolate for the top layer for a beautiful contrast. For a stronger mint flavour, I add an extra drop of peppermint essence. I also like to experiment with orange or raspberry essence for a twist. To make it look festive, I sprinkle crushed candy canes or edible glitter on top before the chocolate sets.

Storage/Reheating

I store the after-dinner mints in an airtight container in the fridge for up to 2 weeks. They also freeze well for up to a month — I layer them between sheets of baking paper and defrost them in the fridge before serving. They’re best served cold for that crisp snap and refreshing minty finish.

FAQs

Can I use milk chocolate instead of dark?

Yes, but I prefer dark chocolate because it balances the sweetness of the peppermint filling.

How do I keep the chocolate layers from cracking?

I make sure the peppermint layer is slightly soft before pouring on the top chocolate layer, so it bonds better.

Can I make these without a microwave?

Yes, I can melt the chocolate and peppermint filling over a double boiler instead.

Can I use peppermint extract instead of essence?

Yes, but extract is stronger, so I use a little less — about 1/8 teaspoon.

Can I make these vegan?

Yes, I use dairy-free chocolate, plant-based milk, and vegan icing sugar.

How do I get clean cuts?

I dip a sharp knife in hot water, wipe it dry, and slice quickly for smooth edges.

Can I add colour to the filling?

Yes, a drop of green food colouring makes the centre look classic and vibrant.

How long do they take to set?

Each layer sets in about 15 minutes, but I chill the final batch for at least 30 minutes.

Can I double the recipe?

Absolutely. I just use a larger pan and adjust the layer thickness as needed.

Can I make these for gifts?

Yes, they make wonderful homemade gifts. I pack them in small boxes or bags with tissue paper.

Conclusion

I love these after-dinner mints for their elegant simplicity and indulgent taste. They combine smooth dark chocolate with a cool peppermint centre, creating the perfect bite to end any meal. Whether I make them for a special occasion or just to treat myself, they’re always a crowd-pleaser and a timeless classic I come back to again and again.