Ingredients
Equipment
Method
- In a large bowl, cream butter and sugar until light and fluffy.
- Beat in egg yolk and vanilla extract until smooth.
- In a separate bowl, whisk flour, cocoa powder, and salt.
- Gradually mix dry ingredients into wet ingredients until a soft dough forms.
- Cover and chill dough for 30 minutes.
- Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
- Roll dough into 1-inch balls and place on baking sheets.
- Use your thumb or the back of a spoon to gently press an indentation into each cookie.
- Bake for 10–12 minutes. Re-press centers gently if needed while warm.
- Cool completely, then fill centers with ganache or jam.
- Ganache: Heat cream until steaming (not boiling), pour over chocolate chips, let sit 2 minutes, then stir smooth.
Notes
For clean thumbprints, dust your thumb lightly with cocoa powder.
Fill cookies after baking to prevent overflow.
Cookies freeze well unfilled for up to 2 months.
Perfect for holiday cookie boxes and gift trays.