1. Preparing the Dry Ingredients

Start by preheating your oven to 350°F (175°C). Prepare a baking sheet by lining it with a silicone mat or parchment paper. In a small bowl, whisk together the all-purpose flour, baking powder, and kosher salt. This will ensure even distribution of the baking powder, helping the cookies achieve that characteristic crinkle effect.

2. Mixing the Wet Ingredients

In a medium bowl, combine the unsweetened Dutch-processed cocoa powder, granulated sugar, brown sugar, and vegetable or canola oil. Stir until the mixture becomes smooth and glossy. Then, add the eggs one at a time, beating well after each addition to ensure a well-integrated batter. Finally, stir in the vanilla extract for a hint of warmth and aroma.

3. Combining the Mixtures

Gradually incorporate the dry ingredients into the wet cocoa mixture. Stir slowly to avoid over-mixing, which can result in dense cookies. Once fully combined, cover the bowl with plastic wrap and refrigerate for 30 to 45 minutes. Chilling the dough is a crucial step, as it firms up the batter, making it easier to roll and shape, while also preventing the cookies from spreading too much during baking.

4. Rolling and Shaping the Cookies

Once the dough has chilled, use a cookie scoop or spoon to portion out 1 1/4-inch balls of dough. Roll each ball between your hands to form a smooth sphere. Next, roll each ball generously in powdered sugar until fully coated. This sugar layer is key to achieving the crinkled appearance once baked.