
Combine brown sugar, melted butter, and cinnamon in a medium-size bowl. If you have a piping bag, go ahead and transfer the filling to one fitted with a small tip. Otherwise, spoon the filling to one corner of a sealable bag and set aside.
In a separate bowl, whisk together the melted butter, cream cheese, vanilla, and powdered sugar. Set the bowl aside.
Combine flour, baking powder, and salt in a large mixing bowl. Then whisk in the milk, egg, and 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!