UNBELIEVABLY SUCCESSFUL MUG CAKE!!! (vegan, microwave)

In a mug add
4 tbsp flour
2 tbsp cocoa powder
3 tbsp sugar
1/4 tsp baking powder
Mix well and then add
2-3 tbsp maple syrup
4 tbsp plant milk
1 tbsp peanut butter
Mix until batter consistency,
Add a piece of dark chocolate

Put in microwave oven, high intensity, for 2-3 minutes