Whisk together dry ingredients in a medium bowl. Warm up buttermilk, just a bit, in a microwave oven; whisk in the egg.
Add to dry ingredients along with melted butter. Stir gently just until combined; batter should be lumpy. Let rest 5-10 minutes.
To make pancakes, pour the desired amount of batter onto a preheated, non-stick skillet or lightly greased skillet. Cook on medium heat until bottom side is brown, turn; cook until center springs back when lightly touched.