BANANA CINNAMON MUG CAKE

Name: BANANA CINNAMON MUG CAKE
Cook time: 90 min
Yield: 1 servings
Ingredients: 1 banana (overripe, mashed, 81 g); 1 tsp cinnamon; 0.25 cup milk of choice (61 g); 2 tbsp vanilla protein powder (16 g, optional - sub with more flour and sweetener); 0.25 cup flour (38 g); 0.5 tsp baking powder; cream cheese (for cream cheese frosting)