This is a cake you want to keep for yourself. All you need is a microwave, a mug and some simple ingredients to make this delicious snickerdoodle cake for you to enjoy!
Combine flour, sugar, baking powder and cinnamon in a small bowl and stir until combined. Blend in milk, butter and vanilla.
Combine sugar and cinnamon for topping in a separate bowl.
Spray a microwave-safe mug or bowl with nonstick cooking spray. Add a spoonful of cake batter, then sprinkle with cinnamon/sugar mix. Alternate layers and top with remaining cinnamon/sugar.
Microwave on high for 1–1½ minutes, or until cake is cooked through.