In a medium mixing bowl, whisk together flour, sugar, baking powder, baking soda, cinnamon, and salt until blended.

In a separate bowl, combine buttermilk, egg, melted butter, and vanilla extract until smooth.

Gently fold the wet ingredients into the dry ingredients until just combined; let rest for about 5 minutes.

Preheat a griddle over medium heat. Lightly grease with melted butter; ensure it's hot enough for water droplets to sizzle.

Pour ¼ cup of batter onto the skillet for each pancake; cook for 2-3 minutes until bubbles form. Flip and cook for an additional 1-2 minutes until golden brown.

Serve warm with desired toppings such as syrup, fresh fruit, or cinnamon sugar.