
Chewy and crisp cookies studded with gooey chunks of dark chocolate, filled with flavors of espresso, and with a perfect balance of salty and sweet.
NOTE: THESE COOKIES DO REQUIRE AN OVERNIGHT CHILL.
Melt butter in a small saucepan over medium heat. Once melted, whisk in espresso grounds. Cover and let steep for 30 minutes. If you want less of a strong espresso flavor, then strain butter mixture over a fine mesh strainer. Use the strained butter in the recipe, discard espresso grounds.
In a large mixing bowl, whisk together the butter mixture, sugars, non-dairy milk, and vanilla until creamy. Use a wooden spoon or rubber spatula to fold in flour, corn starch, instant espresso powder, baking soda, and salt until a soft dough forms. Fold in chopped chocolate until well distributed.
Line a large baking sheet with parchment paper. Use a 1.5-2 tbsp cookie scoop to scoop dough on to the lined baking sheet. Cover baking sheet with plastic wrap and refrigerate dough for at least 8 hours or overnight. This is important for flavor and texture!
Preheat the oven to 350°F. Place dough onto a lined baking sheet, evenly spaced apart (about 6 cookies on a large baking sheet). Bake for 10 minutes until edges are crisp. The middle may seem slightly soft, but that's ok.
After you take the cookies out of the oven, tap the baking sheet down on to a flat surface, this will help flatten the cookies a bit. Allow cookies to cool on the baking sheet for 10 minutes before transferring to a wire cooling rack.