Preheat oven to 350°F (175°C). Line baking tray with parchment paper.
Cream butter, brown sugar, and granulated sugar until pale and fluffy.
Add eggs one at a time, mixing well after each addition. Add vanilla and red food colour.
In another bowl, sift flour, cocoa powder, baking powder, and salt.
Add dry mixture to wet and mix just until combined.
Shape dough into small balls.
Roll each ball first in granulated sugar and then in powdered sugar.
Place on tray and bake for 10 minutes or until cracked on top but soft in the center.
Let cool and enjoy!