The menu for my girls-only St. Patrick's Day pre-going-out party is mostly finger foods. The girls should be able to mingle and snack at their leisure; therefore, serve a dessert that's individual and portable. These chocolate-mint cookies are perfect!
Everyone is bound to love them because they're like a homemade version of the classic Girl Scout thin mint. The cookies can be made two days in advance, so get started early.
These scrumptious sandwiches would also be a great gift wrapped in green ribbon. To check out the recipe, read more.

Ingredients
For the cookies:
1 cup unsweetened Dutch-process cocoa powder
1/2 cup plus 2 tablespoons all-purpose flour
1/2 cup (1 stick) unsalted butter, room temperature
1/2 cup granulated sugar
1 large egg, room temperature
Confectioners' sugar, for work surface
For the ganache:
1/4 cup heavy cream
6 ounces semisweet chocolate, very finely chopped
3/4 teaspoon pure peppermint extract
For the glaze:
6 ounces semisweet chocolate, very finely chopped
Directions
- Make cookies: Whisk together cocoa powder and flour in a bowl.
- Put butter and granulated sugar in the bowl of an electric mixer fitted with the paddle attachment. Mix on medium-high speed until pale and fluffy, about 3 minutes. Mix in egg until well blended.
- Reduce speed to low. Add flour mixture; mix until just combined. Divide dough in half, and shape each half into a disk; wrap in plastic. Refrigerate until firm, about 1 hour (or overnight).
- Preheat oven to 350 degrees. Transfer dough to a work surface lightly dusted with confectioners' sugar. Roll out dough to 1/8 inch thick. Cut out cookies using a 2-inch round cookie cutter; space 1/2 inch apart on baking sheets lined with parchment paper. Repeat with remaining scraps of dough.
- Bake cookies until firm, rotating sheets halfway through, 10 to 12 minutes. Let cool completely on sheets on wire racks.
- Meanwhile, make ganache: Bring cream to a boil in a small saucepan over medium-high heat. Add chocolate. Cook, stirring constantly until chocolate is smooth. Stir in peppermint extract. Let cool slightly, 10 to 15 minutes.
- Spoon 1 teaspoon ganache onto the bottom of 1 cookie; sandwich with another cookie. Repeat with remaining cookies and ganache. Refrigerate until firm, about 10 minutes.
- Make glaze: Melt chocolate in a heatproof bowl set over a pan of simmering water, stirring constantly. Let cool slightly.
- Dip one flat side of each sandwich into melted chocolate to coat; gently shake off excess. Place sandwiches, chocolate sides up, on wire racks set over baking sheets. Refrigerate until set, about 15 minutes. Cookies can be refrigerated in a single layer in airtight containers up to 2 days.
Makes 3 dozen cookies.
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