In a large mixing bowl, whisk together flour, sugar, baking powder, baking soda, and salt until evenly combined.

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

Gently pour the wet mixture into the dry ingredients. Stir until just combined and set aside for 5 minutes.

Preheat a skillet over medium heat and grease it with butter or oil.

Pour about 1/4 cup of batter onto the skillet. Cook for 2-3 minutes until bubbles appear, then flip and cook for another 1-2 minutes.

Remove from the skillet, stack on a warm plate, and serve immediately with toppings.