Chocolate Mug Cake

Instructions

1. Prepare the mug
   Choose a microwave-safe mug with at least 12 oz (350ml) capacity to prevent overflow. Lightly grease the inside with a small amount of butter or cooking spray.
2. Mix dry ingredients
   Add the flour, cocoa powder, sugar, baking powder, and salt to the mug. Use a fork to whisk together until well combined and no lumps remain.
3. Add wet ingredients
   Pour in the milk, vegetable oil, and vanilla extract. Stir with a fork until the batter is smooth and all ingredients are fully incorporated. Make sure to scrape the bottom and sides of the mug to catch any dry pockets.
4. Add chocolate chips
   If using, fold in the chocolate chips, reserving a few to sprinkle on top of the batter. These will create pockets of melted chocolate in the finished cake.
5. Microwave the cake
   Place the mug in the microwave and cook on high power for 60-90 seconds. Start with 60 seconds and check - the cake should be set but still slightly moist on top. Don't overcook or it will become dry and rubbery.
6. Serve and enjoy
   Let the cake cool for 1 minute before serving. Dust with powdered sugar if desired. Serve warm, directly in the mug with a spoon.