Nusrat Amrin

Flour - 1 cup • Baking powder - 1 tsp • Cocoa powder - 1/3 cup • Baking soda - 1 tsp • White Sugar - 1 cup • Salt - 1/2 tsp • Egg - • Vegetable oil - 1/4 cup • Full Cream liquid milk - 1/2 cup • Vanilla essence - 1 tsp • Instant coffee - 1/2 cup • Vinegar - 1 tbsp •