Steps

1. 1

   In a microwave-safe mug, combine the flour, sugar, cocoa powder, baking powder, and salt; mix well.

2. 2

   Add the milk, vegetable oil, and vanilla extract to the dry ingredients in the mug; stir until smooth and well combined.

3. 3

   Fold in chocolate chips if using, distributing evenly throughout the batter.

4. 4

   Place the mug in the microwave and cook on high for 70-90 seconds, checking at 70 seconds to avoid overcooking.

5. 5

   Carefully remove the mug from the microwave; the cake should be set but moist in the center.

6. 6

   Allow the cake to cool slightly before eating directly from the mug or serving with optional toppings like whipped cream or ice cream.

Tips from the chef

• Microwave power varies; start checking at 70 seconds to prevent drying out the cake.

• Use a large mug (at least 12 oz) to avoid overflow during cooking.

• For a dairy-free version, substitute milk with almond or oat milk and use a suitable oil.

• Add a pinch of instant coffee powder to enhance chocolate flavor if desired.

• Serve with fresh fruit or a dusting of powdered sugar for a special touch.