Preheat the oven to 180˚C/350˚F and line a baking tray with baking paper. Set aside
Mix the butter, brown sugar and the regular sugar together and mix it well until light and fluffy. Scrape the sides of the bowl and add the eggs one by one. Whisk them between each addition.
Add vanilla and red food color and mix well.
In a separate bowl add the flour, cacao powder, baking powder and salt and mix through. Add the dry to the wet ingredients and whisk until mixed.
Add the granulated sugar and the icing sugar to two separate bowls.
Use a tablespoon to scoop balls of the dough and roll them into a ball size. First roll it in the granulated sugar and then through the icing sugar. Make sure they are well covered.
Place on a baking tray with a few centimeter in between.
Bak for 10 minutes or until the cookies are baked and slightly risen and cracked. They can be a little soft in the center.
Leave to cool and dust with some extra icing sugar if you want.