Steps
In a microwave-safe mug, combine the flour, cocoa powder, sugar, baking powder, and salt.
Add the milk, vegetable oil, and vanilla extract, and mix until smooth.
Optional: fold in chocolate chips or nuts for extra texture.
Microwave on high for 1 minute and 30 seconds, or until the cake has risen and is set in the middle.
Let it cool for a minute before enjoying your quick chocolate mug cake.