Ingredients
Equipment
Method
- Whisk flour, baking soda, and salt together in a medium bowl.
- In a large bowl, whisk the melted butter, brown sugar, white sugar, and instant espresso powder until combined.
- Whisk in the egg, egg yolk, and vanilla extract until the mixture is smooth.
- Fold the dry ingredients into the wet ingredients until just combined.
- Gently fold in the chocolate chips.
- Cover the dough and chill in the refrigerator for at least 30 minutes.
- Preheat oven to 350°F (175°C). Scoop dough into 2-tablespoon balls onto a lined baking sheet.
- Bake for 10-12 minutes. Sprinkle with flaky sea salt immediately upon removing from the oven.
- Cool on the pan for 5 minutes before transferring to a wire rack.
Notes
Chilling the dough is highly recommended to prevent the cookies from spreading too thin during baking.