Steps
1. In a microwave-safe mug, mix flour, sugar, cocoa powder, baking powder, and salt.
2. Add milk and vegetable oil, stirring until smooth.
3. Gently fold in the chocolate chips.
4. Microwave on high for 60-70 seconds until the cake has risen and is firm on top but gooey inside.
5. Let it cool for a minute before enjoying.