Mix the dry ingredients: In a large mixing bowl, whisk together flour, sugar, baking powder, salt, and cinnamon until well combined.

Combine wet ingredients: In another bowl, blend milk, egg, melted butter, and vanilla extract until smooth.

Combine wet and dry mixtures: Pour the wet ingredients into the dry ingredients and gently stir until just combined.

Preheat the cooking surface: Heat a non-stick griddle over medium heat, greasing lightly.

Pour the batter: Pour approximately 1/4 cup of batter onto the griddle for each pancake.

Flip and finish cooking: Flip pancakes once bubbles form, cooking until golden brown on both sides.

Prepare the cinnamon sugar topping: Mix sugar and cinnamon in a small bowl while pancakes are cooking.

Add the cinnamon sugar: Immediately sprinkle cooked pancakes with the cinnamon sugar topping.

Serve and enjoy: Serve warm with butter, syrup, or toppings of your choice.