(Batter for 2 mug cakes)

2 coffee mugs (microwave safe)
2 Tablespoons melted butter
1 egg
2 Tablespoons milk
1 teaspoon vanilla
1/4 cup sugar
6 Tablespoons self-rising flour
(2 teaspoons baking powder +1 cup flour = self rising flour)
Pinch of salt

Whisk egg & melted butter. Stir in milk, vanilla, and sugar. Mix in flour and salt until smooth. Divide batter between two mugs. Microwave for 3 minutes.