Follow these simple steps to create your delicious Tiramisu Cookies:

1. Preheat the Oven: Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper.
2. Cream Butter and Sugars: In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
3. Add Eggs and Vanilla: Beat in the eggs one at a time, followed by the vanilla extract, mixing until well combined.
4. Combine Dry Ingredients: In another bowl, sift together the flour, cocoa powder, baking soda, and salt.
5. Mix Dry and Wet Ingredients: Gradually add the dry ingredients to the wet mixture, mixing until just combined.
6. Incorporate Coffee and Mascarpone: Stir in the cooled espresso and mascarpone cheese until the mixture is smooth and creamy.
7. Fold in Chocolate Chips: If using, fold in the chocolate chips for added richness.
8. Scoop the Dough: Use a cookie scoop or tablespoon to drop dough onto the prepared baking sheets, spacing them about 2 inches apart.
9. Bake: Bake in the preheated oven for 10-12 minutes or until the edges are set but the centers are still slightly soft.
10. Cool: Remove from the oven and let the cookies cool on the baking sheets for about 10 minutes before transferring them to wire racks to cool completely.
11. Dust with Cocoa: Once cooled, dust the tops of the cookies with cocoa powder for a finishing touch.

These steps will guide you in creating these incredible cookies that are bound to be a crowd-pleaser!