Grease a mug large enough to hold double the ingredients (about 12 ounces).
Place all the ingredients in the greased mug and only half the sprinkles. Whisk to combine until there are no lumps. Add the remaining half sprinkles on top.
Cook in the microwave on high for 1 - 1 1/2 minutes or until the cake is done to your preference.
Allow to rest for 5 minutes before enjoying.
Storage: Store any leftovers (if there are any!) in an airtight container. They will last about 3-4 days in the fridge.
Nutritional Data: Please note that the nutrition label provided is an estimate based on an online nutrition calculator. It will vary based on the specific ingredients you use.
Calories: 369kcal | Carbohydrates: 70g | Protein: 3g | Fat: 9g | Saturated Fat: 1g | Sodium: 81mg | Potassium: 202mg | Fiber: 1g | Sugar: 45g | Calcium: 159mg | Iron: 1mg