Red Velvet Cookies

Name: Red Velvet Cookies
Prep time: 20 min
Cook time: 3 h
Total time: 3 h
Yield: 15 pieces
Ingredients: 200 g all purpose flour; 10 g cocoa powder; ½ tsp baking soda; ½ tsp baking powder; ½ tsp sea salt; 130 g unsalted butter; 80 g caster sugar; 50 g brown sugar; 1 egg; 1 egg yolk; 2 tsp red food colouring; 2 tsp vanilla essence; 1 tsp white vinegar; 150 g white chocolate chips