Chocolate Mint Slice Bars

Name: Chocolate Mint Slice Bars
Prep time: 20 min
Total time: 20 min
Yield: 16 bars
Ingredients: 200g digestive biscuits, crushed; 100g unsalted butter, melted; 2 cups powdered sugar; 1/2 cup cocoa powder; 1 teaspoon peppermint extract; 200g dark chocolate, chopped; 1 tablespoon coconut oil

Highlighted under: Easy Desserts Inspiration

I absolutely love making Chocolate Mint Slice Bars because they combine the richness of chocolate with the refreshing taste of mint. This no-bake dessert is not only quick to prepare but also ridiculously easy, making it perfect for any occasion. Whenever I have friends over or need a sweet treat to bring to gatherings, these bars never fail to impress. The layers of chocolate and mint are so satisfying, and they come together beautifully. Plus, I’m always amazed at how just a few ingredients can create such a delightful and indulgent snack.

Created by

Nicola Fairchild

Last updated on 2026-01-12T06:41:34.945Z

When I first tried making these Chocolate Mint Slice Bars, I was intrigued by how simple yet delicious they looked. I experimented with the ratio of chocolate to mint, and I found that a balanced amount of mint extract gives the bars that refreshing kick without being overwhelming. Using high-quality chocolate is crucial too; it really makes the flavor pop.

The best part about this recipe is that it requires no baking, freeing up my oven for other dishes. I recommend chilling them for a bit longer than suggested to really let the flavors meld. Trust me, it’s worth the wait!

Why You'll Love This Recipe
Rich chocolate flavor paired with fresh mint essence
No baking required, making it a quick treat
Ideal for sharing at parties or events

Understanding the Ingredients

The foundation of these Chocolate Mint Slice Bars lies in the combination of crushed digestive biscuits and melted butter. This pairing creates a rich, crumbly base that holds the bars together. Digestive biscuits are preferred here for their slightly sweet and wheaty flavor, which pairs beautifully with the chocolate and mint. If you're looking for an alternative, graham crackers can provide a similar texture and flavor, while for a gluten-free option, you can use gluten-free digestive biscuits without sacrificing taste.

The use of powdered sugar in the mint layer not only sweetens the mixture but also gives it a smooth, velvety texture. This is crucial in balancing the strong flavors of cocoa and peppermint. When mixing, aim for a creamy consistency without lumps; this will ensure that the bars slice cleanly. If you find the mixture too thick, a splash of milk or dairy-free alternative can help loosen it up. Similarly, you can experiment with other flavors by swapping peppermint extract for vanilla or almond extract for a unique twist.

Techniques for Perfect Bars

When pressing the biscuit base into the baking dish, it's important to use the back of a measuring cup or a flat surface to create a compact and even layer. This minimizes air pockets, which could cause the bars to crumble when cut. Aim for a thickness of about 1/4 to 1/2 inch. Consider chilling the base for about 15 minutes after pressing it in; this helps it to set and can enhance the overall texture of the bars, ensuring they hold their shape when sliced.

Melting chocolate may seem straightforward, but it's essential to do it carefully to avoid seizing. Whether using a microwave or a double boiler, keep a close eye on the chocolate to ensure it's melted just until glossy and smooth. Stir frequently and heat in short intervals. If your chocolate thickens unexpectedly, adding a teaspoon of coconut oil (as included in the recipe) while stirring can smooth it out. Remember to let the chocolate cool slightly before pouring it over the mint layer to prevent it from melting the mint mixture beneath.

Ingredients

Gather your ingredients to make these delightful bars:

Ingredients

200g digestive biscuits, crushed
100g unsalted butter, melted
2 cups powdered sugar
1/2 cup cocoa powder
1 teaspoon peppermint extract
200g dark chocolate, chopped
1 tablespoon coconut oil

Have everything ready? Let’s get started!

Instructions

Follow these steps to make your Chocolate Mint Slice Bars:

Prepare the Base

In a bowl, mix the crushed digestive biscuits with melted butter and stir until well combined. Press this mixture into the bottom of a lined baking dish to create an even base.

Make the Mint Layer

In another bowl, combine powdered sugar, cocoa powder, and peppermint extract. Mix until smooth. Spread this mixture evenly over the biscuit base.

Prepare the Chocolate Topping

Melt the dark chocolate and coconut oil together in a microwave or over a double boiler until smooth. Pour the chocolate over the mint layer and spread evenly.

Chill and Set

Refrigerate for at least 2 hours until fully set. Once set, remove from the dish and cut into bars.

Your delicious bars are ready to enjoy!

Pro Tips

For an extra touch, sprinkle crushed mint candies on top before chilling.

Storage and Make-Ahead Tips

These Chocolate Mint Slice Bars are perfect for making ahead of time. Once set, you can store them in an airtight container in the refrigerator for up to a week. Just make sure to separate layers with parchment paper to prevent sticking. If you'd like to keep them longer, you can freeze individual bars wrapped tightly in plastic wrap and then place them in a freezer-safe container or bag. They will stay good in the freezer for up to three months. Just thaw them in the fridge the night before you plan to serve them.

For a more decadent experience, consider adding layers or toppings. For example, a drizzle of white chocolate over the dark chocolate layer can create a beautiful contrast and add an extra layer of flavor. Additionally, you can sprinkle crushed candy canes or nuts on top before the chocolate sets for added texture and festive flair.

Serving Suggestions

These bars are incredibly versatile when it comes to serving. They can be cut into small squares for bite-sized treats at gatherings or larger rectangles for dessert plates at dinner. Pairing them with fresh berries or whipped cream can elevate the presentation and provide a balance of flavors. For a touch of elegance, serve them on a cake stand with a dusting of powdered sugar or cocoa powder on top before presenting to guests.

If you're feeling adventurous, feel free to play with flavor combinations. Adding a splash of orange zest or a hint of espresso powder to the mint layer can create exciting new taste profiles. You could also swap out the dark chocolate for milk chocolate for a creamier texture. Just remember that the thickness of chocolate used may impact the final texture of the topping layer, so adjust accordingly if you make substitutions.

Questions About Recipes

→ Can I use a different type of biscuit?

Yes, you can use any similar biscuits, just make sure they are not too sweet.

→ How long do these bars last?

They can last about a week in the refrigerator, stored in an airtight container.

→ Can I make these bars vegan?

Yes! Substitute the butter with a plant-based alternative and use dairy-free chocolate.

→ What’s the best way to cut the bars?

Use a sharp knife and wipe it clean after each cut for neat pieces.