1 minute chocolate mug cake in the microwave. This has literally become my favourite mug cake ever since I have made it. It tastes even better when served with vanilla ice cream3 tbsp melted butter3 tbsp castor sugar1/2 tsp vanilla extract4 tbsp plain flour2 tbsp cocoa powder1/8 tsp baking powder4 tbsp milkA scoop of vanilla ice cream Follow for more recipes.