Step 1

For every two tablespoons of brownie mix, it's 100 calories. So, grab a full size brownie boxed mix and portion it out every time you need a treat.

Step 2

Spray a large mug with cooking spray.

Step 3

Add 2 tablespoons of brownie mix, and only enough water to make it the consistency of thick liquid. One teaspoon at a time.

Step 4

Microwave for 60 seconds.

Step 5

Check for doneness. Cook for 20-30 seconds longer.

Step 6

Eat right away! The brownie will be fudgy and chewy. If you leave it too long, it becomes hard and rubbery.