Creating Mocha Hazelnut Thumbprint Cookies can be done with these simple steps:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C). Line a baking sheet with parchment paper.
2. Mix Ingredients: In a large bowl, combine the hazelnut flour, granulated sugar, and cocoa powder.
3. Add Butter: Add softened butter to the dry mixture. Use a fork or your hands to mix until crumbly.
4. Incorporate Espresso: Pour in the brewed espresso and mix until the dough comes together.
5. Form Cookies: Roll the dough into small balls, about 1 inch in diameter. Place them on the prepared baking sheet, spaced a couple of inches apart.
6. Create Thumbprints: Use your thumb or the back of a teaspoon to create a small indentation in each ball.
7. Bake: Place the baking sheet in the preheated oven and bake for about 15-20 minutes, or until the cookies are firm to the touch.
8. Cool: Remove from the oven and let them cool on the baking sheet for 5 minutes before transferring them to a wire rack to finish cooling.

These steps ensure a smooth process in creating these delightful cookies effortlessly!