Ingredients
Equipment
Method
- In a large bowl, beat the butter, brown sugar, and granulated sugar with an electric mixer on medium speed until creamy, about 2 minutes.
- Beat in the egg, egg yolk, and vanilla until combined, scraping down the bowl as needed.
- In a separate bowl, whisk together the flour, espresso powder, baking soda, and salt.
- Add the flour mixture to the butter mixture and mix on low just until no dry flour remains.
- Stir in the chocolate chips.
- Cover the bowl and refrigerate the dough for 30 minutes.
- Heat the oven to 350°F.
- Line two baking sheets with parchment paper.
- Scoop rounded tablespoons of dough onto the prepared sheets, spacing them about 2 inches apart.
- Bake for 10–12 minutes, until the edges are golden and the centers still look slightly soft.
- Let the cookies cool on the baking sheets for 5 minutes.
- Transfer the cookies to a wire rack to cool completely.
Notes
For pronounced coffee flavor, measure the instant espresso powder carefully. Store cookies in the refrigerator for up to 5 days; freeze baked cookies for up to 3 months. For a dairy-free variation, use dairy-free butter and semisweet chocolate chips.
