Prepare Cinnamon Filling: In a small bowl, mix melted butter, brown sugar, and ground cinnamon. Transfer mixture to a ziplock bag, seal tightly, and let sit for 10–15 minutes.

Make Pancake Batter: In a large bowl, whisk flour, baking powder, and salt. In a separate bowl, combine milk, vegetable oil, and beaten egg. Pour wet into dry and stir gently until just combined.

Make Glaze: Combine cream cheese and melted butter, heating in microwave until warm. Whisk until smooth, then blend in powdered sugar and vanilla extract.

Preheat Skillet: Heat a non-stick skillet over low heat. Test with water droplets; lightly grease the skillet.

Cook Pancakes: Pour pancake batter onto skillet and pipe cinnamon filling on top. Cook until bubbles form, then flip and cook until golden brown.

Serve: Stack pancakes and drizzle with cream cheese glaze. Optionally sprinkle with powdered sugar or chopped nuts.