
In a large mixing bowl, whisk to combine the flour, baking powder, sugar, salt and cinnamon.
In a liquid measuring cup or bowl, whisk to combine the milk, egg and vanilla.
Make a well in the flour mixture and add the milk mixture. Add the melted butter. Stir gently to combine (it’s ok if the batter is lumpy and a few streaks of flour remain.) Gently fold in the grated apple.
Heat a griddle or large nonstick skillet over medium-high heat. Grease with nonstick cooking spray or brush evenly with more melted butter.
Using a ¼ cup measure, drop the pancake batter onto the griddle or skillet, leaving about 1” of space in between each pancake. Reduce the heat to medium.
Cook for about 3 minutes, or until golden brown and little bubbles appear all over the top side of the pancake. Flip the pancakes and cook for about 2 more minutes, until golden brown and the centers are cooked through. Transfer to a wire rack. Repeat with the remaining batter.
Serve topped with fried apples, maple syrup and/or butter.