01 -
Preheat the oven to 175°C and line baking sheets with parchment paper.
02 -
Whisk together flour, cocoa powder, baking soda, and salt in a medium bowl until evenly mixed.
03 -
In a large bowl, beat softened butter and granulated sugar until light and fluffy, approximately 2-3 minutes.
04 -
Incorporate the egg and vanilla extract into the creamed mixture and beat until blended.
05 -
Gently fold the dry ingredients into the wet ingredients until just combined. Avoid overmixing to maintain a tender texture.
06 -
Cover the dough and refrigerate for at least 30 minutes to firm up and prevent excessive spreading during baking.
07 -
Scoop tablespoon-sized dough balls and roll them evenly in rainbow sprinkles before placing on the prepared baking sheets about 5 cm apart.
08 -
Bake in the preheated oven for 10-12 minutes or until the edges are set but the centers remain soft and chewy.
09 -
Allow cookies to cool on baking sheets for 5 minutes, then transfer to wire racks to cool completely before serving.