Print

Espresso Chip Tiramisu Cookie Bars Recipe

4.8 from 146 reviews

These Espresso Chip Tiramisu Cookie Bars combine the rich, bold flavor of espresso with luscious dark chocolate in a chewy cookie base topped with a creamy mascarpone frosting dusted with cocoa powder. Perfectly chilled and cut into squares, these bars blend coffee and dessert seamlessly for a sophisticated treat that tastes like tiramisu in cookie form.

Ingredients

Scale

Espresso Chip Cookie Bars

  • 12 tablespoons (170g) unsalted butter
  • 3 tablespoons (11g) instant espresso powder
  • 2/3 cup (127g) light brown sugar
  • 1/3 cup (64g) granulated sugar
  • 1 1/2 teaspoon vanilla extract
  • 1 large egg + 1 large egg yolk
  • 1 2/3 cup (200g) all purpose flour
  • 3/4 teaspoon baking soda
  • 1/2 teaspoon salt
  • A shy 2/3 cup (3.5oz) dark chocolate bar, chopped
  • 2/3 cup (4oz) semisweet chocolate chips

Mascarpone Topping

  • 8 oz mascarpone, cold
  • 1 cup (120g) powdered sugar
  • 1 teaspoon vanilla extract
  • 3/4 cup heavy cream, cold
  • 12 tablespoons cocoa powder

Instructions

  1. Make the espresso butter mixture: Melt the unsalted butter and stir in the instant espresso powder until the powder is submerged and aromatic. It doesn’t have to be fully dissolved.
  2. Mix sugars and eggs: Add light brown and granulated sugars to the butter mixture and combine with a spatula. Then mix in the egg, egg yolk, and vanilla extract, beating until the mixture lightens in color.
  3. Add dry ingredients: Fold the all-purpose flour, baking soda, and salt into the wet mixture until a shaggy dough forms.
  4. Incorporate chocolate: Mix in the chopped dark chocolate and semisweet chocolate chips evenly throughout the dough.
  5. Chill dough: Transfer the dough into a parchment-lined 9×9 inch square pan, spreading it evenly. Chill uncovered in the refrigerator for 2 hours. Optionally, cover with plastic wrap for chilling up to 24 hours.
  6. Bake cookie bars: Preheat oven to 350°F (175°C). Bake the chilled cookie dough for 24-26 minutes until the top is shiny and the bars don’t jiggle when shaken.
  7. Cool bars: Allow the baked bars to cool at room temperature for about 1 hour, then chill in the fridge for 1-2 hours until fully set.
  8. Prepare mascarpone topping: In a large bowl, whisk together cold mascarpone, powdered sugar, and vanilla extract until smooth and lump-free.
  9. Whip heavy cream: In a separate bowl, whip the cold heavy cream using a hand mixer until stiff peaks form.
  10. Combine topping: Gently fold the whipped cream into the mascarpone mixture until completely blended.
  11. Assemble bars: Spread or pipe the mascarpone topping evenly onto the chilled espresso chip cookie bars.
  12. Finish with cocoa powder: Using a mesh strainer, sift 1-2 tablespoons of cocoa powder over the top for a classic tiramisu finish.
  13. Final chill and serve: For clean slices, chill the finished bars for an additional 1-2 hours before cutting. Store bars in an airtight container in the refrigerator and enjoy cold.

Notes

  • Use a finely ground instant espresso powder branded for baking for best flavor and texture.
  • You can chill the cookie dough for up to 24 hours before baking to enhance flavor.
  • Bars taste best served cold and should be stored refrigerated in an airtight container.
  • Consume within 3-4 days for optimal freshness.
  • You can bake the cookie bars in advance and add the mascarpone topping right before serving to extend shelf life by a day.
  • Cutting the bars after chilling the topping helps achieve clean slices without smearing.

Keywords: espresso chip tiramisu cookie bars, espresso cookies, tiramisu bars, coffee dessert, chocolate chip bars, coffee cookie bars, mascarpone topping