Oh, if you’re looking for a festive treat that just screams holiday cheer, this Christmas Peppermint Slice Recipe is exactly what you need in your life. It’s super simple to pull together, but the flavors pack a punch—rich chocolate, that cool peppermint hit, and a delightful crunch from the biscuits and candy canes. Honestly, every year at my holiday gatherings, this slice disappears faster than I can say “Merry Christmas!”

The great thing about this Christmas Peppermint Slice Recipe is how versatile it is. Whether you want to whip something up for a last-minute gift, a potluck, or just because you’re craving something sweet and minty during December, it’s your go-to slice. Plus, it’s no bake, so you’ll have more time to sip that eggnog while it sets!

Ingredients You’ll Need

These ingredients combine to give you an indulgently fudgy base with a peppermint-flecked white chocolate topping that’s just magic. When you shop, I recommend grabbing the freshest peppermint essence you can find for that authentic flavor punch.

Butter: Makes the base rich and fudgy—unsalted is best for controlling salt levels.
Cocoa powder: Gives that deep chocolate flavor; make sure it’s unsweetened for balance.
Brown sugar: Adds a caramel-like sweetness that compliments the chocolate perfectly.
Vanilla extract: A little magic that enhances all the other flavors.
Milk: Binds everything together and keeps the base moist.
Marie or wine biscuits: Provides crunch and texture; crush but don’t powder them for the best bite.
White chocolate: For the topping, smooth and sweet with a creamy texture.
Vegetable oil: Helps the white chocolate topping set to the right consistency.
Peppermint essence: The star of the show—just the right amount gives that festive kick.
Christmas M&Ms: Adds color and extra chocolatey bits; feel free to swap for your favorite holiday-themed candy.
Candy canes: Crushed for a minty crunch and a pretty top finish.

Variations

I love how forgiving this Christmas Peppermint Slice Recipe is when it comes to tweaks—feel free to make it your own! I’ve swapped out the white chocolate topping for dark chocolate when I want a slightly less sweet version, and it still melts in your mouth.

Vegan version: Use dairy-free butter and plant-based milk to make this treat vegan-friendly without losing the festive vibe.
Nutty twist: Toss in some chopped pistachios or almonds to add a salty crunch that pairs beautifully with peppermint.
Extra minty: If you’re like me and adore that cooling effect, add extra peppermint essence to the topping—just don’t go overboard!
Gluten-free option: Use gluten-free biscuits to accommodate dietary needs while keeping the texture intact.

How to Make Christmas Peppermint Slice Recipe

Step 1: Prepare the Chocolatey Base

Start by gently melting the butter, cocoa powder, and brown sugar in a saucepan over low heat. Stir constantly—patience here is key to avoid burning. Once smooth, mix in vanilla extract and milk, giving it a glossy finish. Then, fold in those crushed biscuits carefully. You want them coated but still in chunks for a great bite.

Step 2: Press and Chill the Base

Line a slice tin with baking paper and press the biscuit mixture evenly into the base. Use the back of a spoon for a smooth, compact layer. Then pop it in the fridge—this step lets everything set so your slice holds shape well later.

Step 3: Make the Peppermint White Chocolate Topping

While the base chills, melt your white chocolate and vegetable oil together gently—either in a microwave (in 20-second bursts) or over a double boiler. Once silky smooth, stir in the peppermint essence. Pour this over the chilled base in an even layer, then scatter your Christmas M&Ms and crushed candy canes on top. I love how the colors immediately make you smile!

Step 4: Set and Slice

Place the whole slice back in the fridge for at least 2 hours to set firmly. I find overnight chilling works best if you want clean slices that hold together beautifully. When you’re ready, use a sharp knife to cut into squares or rectangles—and enjoy that satisfying crack when you bite in.

How to Serve Christmas Peppermint Slice Recipe

The image shows eight white bowls and plates arranged on a white marbled surface, each containing different ingredients. At the center bottom is a large white chocolate bar divided into rectangular segments, smooth and creamy in texture with a pale ivory color. Above it to the left are four square light brown graham crackers stacked unevenly, with visible tiny holes on their surface. To the top left in a small white bowl are red and green candy-coated chocolates. Above them is a white bowl filled with thick, glossy dark brown melted chocolate. To the right of the melted chocolate is a white bowl with light brown granulated sugar. Below that is a tiny white bowl with fine, white salt. To the right center is a white bowl filled with creamy white yogurt or cream with a soft swirl pattern on top. Lastly, at the bottom right is a small white bowl holding crushed candy canes in white and red pieces. photo taken with an iphone --ar 4:5 --v 7

Garnishes

I often add a little sprinkle of extra crushed candy cane right before serving—just for that fresh peppermint burst and festive look. Sometimes, a tiny dusting of edible glitter can make your slices sparkle, perfect for a Christmas party!

Side Dishes

This slice is such a treat on its own, but I like pairing it with a warm cup of spiced tea or peppermint hot chocolate. It also balances nicely with some fresh berry salad if you want a lighter side to cut through the richness.

Creative Ways to Present

For a holiday potluck, try stacking your peppermint slices in a tiered cake stand for a charming display. Wrapping individual pieces in festive cellophane tied with red ribbon makes great edible gifts that feel extra special.

Make Ahead and Storage

Storing Leftovers

I keep leftover peppermint slices in an airtight container in the fridge. They stay fresh and delicious for up to a week—though honestly, they rarely last that long in my house!

Freezing

If you want to make a batch ahead, wrapping slices individually in parchment paper and freezing in a sealed container works like a charm. When thawed in the fridge, they taste just as good as freshly made.

Reheating

This slice is best enjoyed chilled, so I don’t recommend reheating it. Simply bring it to room temperature for a few minutes before serving if it’s been in the fridge or freezer for a while.

FAQs

Can I use other types of biscuits in this Christmas Peppermint Slice Recipe?

Absolutely! While Marie or wine biscuits offer the perfect light crunch and absorb the chocolate base well, you can experiment with plain tea biscuits or digestive biscuits. Just avoid anything too sweet or flavored as it can alter the balance of flavors in the slice.
What’s the best way to crush the biscuits for the base?

I usually pop the biscuits in a ziplock bag and gently bash them with a rolling pin. You want a mix of small pieces and crumbs—not to powder. If they’re too fine, the base can become a bit too dense.
Is peppermint essence the same as peppermint oil?

Peppermint essence is a food-grade flavoring designed for culinary use, whereas peppermint oil can be much stronger and not always suitable for baking without dilution. Stick to peppermint essence unless your oil is specifically labeled safe for cooking.
Can I make this slice ahead of time for a party?

Definitely! In fact, making it a day or two in advance allows the flavors to meld beautifully. Just keep it chilled until just before serving.
How can I make my slice look more festive?

Using brightly colored Christmas M&Ms and crushed candy canes on top is already festive, but you can also add edible gold stars or a light dusting of icing sugar to mimic snow for a pretty presentation.

Final Thoughts

This Christmas Peppermint Slice Recipe has truly become my holiday staple, the kind of go-to treat you can rely on when you want something impressive but effortless. Every time I make it, friends ask for the recipe or sneak extra pieces when no one’s looking (don’t worry, I do too!). I hope you’ll give this a try and make it part of your festive traditions—it’s the perfect way to add a bit of sweet, minty joy to your holiday season.