Prep Time 20 minutes mins
Cook Time 10 minutes mins
Resting Time 1 hour hr
Total Time 1 hour hr 30 minutes mins
For clean cut edges, roll dough between two sheets of parchment and chill the rolled sheet for 10 minutes before cutting. Use Dutch-process cocoa for a deep color and smooth chocolate flavor; if using natural cocoa, reduce baking soda to a pinch. Avoid overbaking—these cookies firm up as they cool. If dough cracks while rolling, let it warm 2 to 3 minutes at room temperature. To prevent spreading, ensure butter is just softened, not melty, and always bake on a cool sheet. Flavor boosters like espresso powder (1/2 teaspoon) or orange zest (1 teaspoon) pair beautifully with dark chocolate. Store in an airtight container for 5 days or freeze baked cookies or dough shapes for up to 2 months.