Easy 3-Ingredient Funfetti Mug Cake Gluten Free

0 Mix the cake batter. Lightly grease a microwave safe coffee mug with olive oil or your favorite cooking spray. Add the box cake mix, applesauce and milk to the mug and mix well using a fork or small whisk until you achieve a smooth batter and no clumps of dry ingredients remain.
1 Microwave. Place the mug in the microwave & heat for 60 seconds. After 60 seconds, check for doneness using a toothpick inserted into the center of the cake. If it is not fully cooked, an easy way to avoid over cooking the mug cake is to reheat it in 5 second increments.
2 Add toppings. Add toppings like frosting & sprinkles if using & enjoy!