Baking

2 cups sugar, 1 3/4 cup all purpose flour, 1/2 cup cocoa powder, 1 1/2 tsp baking powder, 1

125g flour, 100g brown sugar, 4tbsp caster sugar, 1 egg, 2 tsp vanilla extract, 110g unsalted

500g boneless chicken cut into cubes, 1 tbsp vinegar, 1 1/2 tsp salt, 1/2 tsp white pepper,