Combine flour, baking powder, and salt in a large mixing bowl. Then whisk in the milk, egg, and oil.
1 cup all purpose flour, 2 tsp baking powder, 1/2 tsp salt, 1 cup milk, 1 large egg, 1 tbsp vegetable oil
Heat a skillet or griddle to medium-low and prep the surface with nonstick spray or a pat of butter.
Add about ½ cup of the batter per pancake to the skillet. Don't overfill the pan with too many pancakes.
Wait until bubbles start to form along the edges and in the center of the pancake, then create a swirl pattern with the cinnamon filling, starting from the center of the pancake to the outside. (Don't swirl it close to the edge or it will be a mess.)
Flip the pancake over with a spatula, and continue cooking for an additional 1-2 minutes until golden brown.
Warm the glaze if needed and drizzle over the stack of pancakes, and serve hot!
Enjoy!