There’s something about the combination of mint and chocolate that feels timeless, indulgent, and a little bit nostalgic. These Mint Chocolate Sandwich Cookies bring that classic pairing together in the most irresistible way – soft, chewy chocolate cookies layered with a silky peppermint buttercream filling. They’re everything you want in a sweet bite: rich, refreshing, and oh-so satisfying.

The best part is that they’re surprisingly simple to make, with ingredients you probably already have in your pantry. The cookie base uses melted chocolate chips for extra depth of flavor, which keeps them moist and chewy while still holding their shape perfectly. And that minty buttercream? It’s whipped until smooth and creamy, then tinted with just the right touch of green food coloring for that festive look. Whether you go pale pastel for spring or a deeper shade for the holidays, they’ll always look stunning sandwiched together.

What makes these cookies stand out is the balance – the chocolate isn’t overly sweet, the peppermint isn’t overpowering, and the textures complement each other beautifully. The bite is tender yet indulgent, cool yet comforting. They remind me a little of those famous after-dinner mints but taken to the next level and transformed into a dessert that’s just as fun to make as it is to eat.

Serve these at holiday gatherings, package them up for edible gifts, or bake a batch on a quiet afternoon when you’re craving a little homemade comfort. Trust me, one bite in and you’ll understand why mint and chocolate have stood the test of time as one of the most beloved flavor combinations.

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Mint Chocolate Sandwich Cookies

Chewy chocolate cookies filled with creamy mint buttercream – the perfect balance of rich, refreshing, and indulgent.

Servings cookies

Cook Time 30

Total Time 30

Equipment

Ingredients

For the Cookies:

2½ cups all-purpose flour 315g
2 large eggs at room temperature
1½ teaspoons baking soda
2 cups semi-sweet chocolate chips 340g
6 tablespoons butter 85g
1½ cups packed brown sugar 300g
2 tablespoons water 30ml
1 teaspoon vanilla extract
½ teaspoon salt

For the Filling:

2½ cups powdered sugar 300g
¼ cup softened butter 55g
4–5 tablespoons of milk or half-and-half
½ teaspoon peppermint extract
Green food coloring

Instructions

Preheat the oven to 350ºF / 175ºC degrees.
Place the butter, sugar, chocolate chips, and water into a saucepan over low heat. Stir until the chocolate has melted and the mixture is smooth.
Allow to cool.
Once cooled, beat in the eggs and vanilla extract.
In a bowl, combine the flour, baking soda, and salt, then add this into the chocolate mixture.
Using a small ice cream scoop, drop spoonfuls of the mixture onto an ungreased baking sheet, leaving a 2-inch gap between each one to allow for rising and spreading during the baking process.
Bake for around 10–12 minutes until firm. Allow to cool on the tray for a few minutes, then remove to a wire rack to cool completely.
In a large mixing bowl, place the powdered sugar, butter, milk, and peppermint extract. Mix until smooth, then add in the food coloring a drop at a time until you have the desired color.
Place the filling into a piping bag and pipe onto the underside of one cookie, then top with another to create sandwiches.