Whisk together flour, cinnamon, baking powder, and salt in a bowl.
Blend in the egg, sugar, milk, oil, and vanilla extract.
Heat butter in a non-stick skillet.
Ladle batter into the pan and cook for 2-3 minutes. Flip and cook for another minute. Set pancakes aside.
Whisk together milk, egg, and vanilla extract in a deep dish.
Melt butter in a non-stick pan.
Dip pancakes into the egg mixture and cook in the pan until golden on both sides.
To serve, drizzle maple syrup on top and dust with powdered sugar.