Combine the dry ingredients (flour, sugar, baking powder, baking soda, and salt) in a bowl; mix together.
In a separate bowl, whisk the eggs, and then add in the liquid ingredients (buttermilk, butter, and vanilla), whisking until well combined.
Add the liquid ingredients into the dry ingredients, and stir until combined.
Spray your skillet with cooking spray (or use butter).
Using a soup ladle (or measure 1/4 measuring cup), pour the batter onto the skillet.
Cook for 2-3 minutes on each side; let cool on a plate.
(Pancakes can be made up to 3 days ahead and stored in the fridge.)