Sugar Cookie In A Mug Or Coffee Cup

Method

1. I

   Spray microwave safe coffee mug with vegetable oil spray.

2. II

   Place butter in the mug & melt in microwave (about 30 seconds).

3. III

   Add sugar, vanilla and salt and stir together.

4. IV

   Add the egg yolk, mixing thoroughly.

5. V

   Add flour and stir until combined.

6. VI

   Top with sprinkles and cook in the microwave for about 40-45 seconds. Check for doneness with a toothpick.