In a mixing bowl, whisk together the flour, sugar, baking powder, baking soda, and salt.

In another bowl, mix the buttermilk, egg, melted butter, and vanilla extract until well combined.

Pour the wet mixture into the dry ingredients and stir gently until just combined.

Heat a non-stick skillet or griddle over medium heat and lightly grease it.

Pour about 1/4 cup of batter onto the skillet for each pancake.

Cook until bubbles form on the surface, about 2-3 minutes.

Carefully flip the pancakes and cook for another 1-2 minutes until golden brown.

Transfer the pancakes to a plate and serve warm.