Tiramisu Cookie Sandwiches (Print Version)

# Ingredients:

01 - 1 cup unsalted butter, room temperature.
02 - 1/2 cup granulated sugar.
03 - 1/2 cup brown sugar.
04 - 1 large egg.
05 - 1 teaspoon vanilla extract.
06 - 1 1/2 cups all-purpose flour.
07 - 1/4 cup cocoa powder.
08 - 1 teaspoon baking soda.
09 - 1/2 teaspoon salt.
10 - 2 tablespoons instant espresso powder.
11 - 1 tablespoon hot water.
12 - 1 cup mascarpone cheese, chilled.
13 - 1/2 cup heavy cream, cold.
14 - 1/4 cup powdered sugar.
15 - Unsweetened cocoa powder for dusting.

# Instructions:

01 - Heat oven to 350°F and line two baking sheets with parchment paper.
02 - Mix butter with both sugars until fluffy. Add egg, vanilla, and coffee mixture.
03 - Combine flour, cocoa, baking soda, and salt. Add to wet ingredients until mixed.
04 - Form dough balls and flatten slightly on baking sheets.
05 - Cook for 8-10 minutes until edges are set. Cool completely.
06 - Whip mascarpone, cream, sugar, and vanilla until stiff peaks form.
07 - Spread filling between cookies, add topping dollops, and dust with cocoa.

# Notes:

01 - These cookies capture the classic tiramisu flavor in sandwich form.
02 - Room temperature ingredients work best for the cookie dough.
03 - Keep assembled cookies refrigerated.