Espresso cookies topped with fluffy mascarpone frosting and finished with a light dusting of cocoa powder. These gluten-free, sugar-free tiramisu cookies have all the classic look and feel of tiramisu in an easy cookie format.
Cream the butter and sweetener: Beat the butter and powdered sweetener together until smooth and creamy.
Add wet ingredients: Beat in the egg yolk, salt, and vanilla extract until fully combined.
Mix in dry ingredients: Add the almond flour, coconut flour, and espresso powder and beat until a soft, slightly sticky dough forms.
Shape the dough: Place the dough onto plastic wrap and shape into a log about 6 inches long and 2 inches in diameter. Wrap tightly.
Chill: Refrigerate the dough until firm, at least 2 hours or overnight.
Slice and bake: Preheat the oven to 350°F and line a baking sheet with parchment paper. Slice the dough into 16 rounds, about 3/8 inch thick. Bake for 9–11 minutes, until the edges are set. Cool completely.
Beat mascarpone: Add mascarpone to a mixing bowl and beat by itself until smooth and creamy.
Sweeten the frosting: Add powdered sweetener and vanilla extract and beat again until combined.
Add cream: Add the heavy cream 1/4 cup at a time, beating between additions, until thick and fluffy.
Assemble: Pipe or spread frosting onto cooled cookies. Dust lightly with cocoa powder just before serving.
Notes
Flour swaps: Do not substitute flours. Almond flour and coconut flour work together to give these cookies the correct texture.Chilling: Fully chilling the dough is essential for clean slices and prevents spreading.Mascarpone: Beat mascarpone on its own first to avoid lumps and ensure a smooth frosting.Cocoa topping: Dust a fresh coating of cocoa powder right before serving.