01 -
In a mixing bowl, beat the softened butter, brown sugar, and granulated sugar together until smooth and fluffy.
02 -
Add the egg yolk, vanilla extract, and red food coloring to the creamed butter mixture and blend thoroughly.
03 -
In a separate bowl, whisk together the flour, cocoa powder, salt, and baking powder.
04 -
Gradually add the dry ingredients to the wet ingredients, mixing until just combined to form the cookie dough.
05 -
Scoop 1 tablespoon portions of dough and roll into balls. Coat each ball evenly with red sanding sugar and place onto an ungreased baking sheet.
06 -
Bake in a preheated oven at 175°C (350°F) for 10 to 12 minutes until slightly firm to the touch.
07 -
Immediately upon removing the cookies from the oven, gently press a Hershey’s Kiss into the center of each cookie.