Ingredients
Method
Preparation
- In a large mixing bowl, use a hand mixer to combine the brown sugar, granulated sugar, and softened butter until light and creamy.
- Add the egg, egg yolk, and vanilla extract; mix until smooth.
- In a separate bowl, whisk together the flour, cocoa powder, baking powder, salt, and baking soda.
- Gradually add the dry ingredients to the wet ingredients and mix on low speed until just combined.
- Divide dough into three portions, wrap in plastic wrap, and refrigerate for 30 minutes.
Baking
- Preheat oven to 350°F and line a baking sheet with parchment paper.
- Roll out one dough portion into an 8-inch square, sprinkle with 1/3 of the chocolate chunks, and press in.
- Repeat with the second portion on top, adding more chocolate chunks.
- Roll the final portion and place on top, pressing in the last chocolate chunks.
- Roll the entire stack into a 10-inch square, then cut into 2-inch squares.
- Place cookies on the baking sheet and bake for 11-14 minutes or until edges are set.
- Let cool before transferring to a wire rack.
Notes
Serve slightly warm for the best chocolate melting experience. Store in an airtight tin with parchment layers to maintain texture.
