- 5 tablespoons white sugar
- 1/4 cup all-purpose flour
- 3 tablespoons milk
- 3 tablespoons olive oil
- 2 tablespoons unsweetened cocoa powder
- 1 egg
- 1 dash pure vanilla extract
- 1 pinch salt
- Mix sugar, flour, milk, olive oil, cocoa powder, egg, vanilla extract, and salt together in a large microwave-safe mug.
- Heat in microwave until center of cake is done, about 2 minutes.