A recipe, very delicious and all in one minute

You'll need:
1/2 cup of all purpose flour
1/4 cup of unsweetened cocoa powder
1/4 cup of sugar
2 tbsp of milk
1 tbsp of melted butter
1 tsp of vanilla
A pinch of salt
1 ceramic mug

Method:
Mix everything and microwave for one minute

Serve with chocolate chips or glaze