In a large bowl combine the buttermilk, egg, and butter. In a smaller bowl combine the flour, baking powder, salt, and sugar.
Add the flour mixture to the milk mixture and whisk until smooth.
Heat a frying pan over medium heat. Spray with cooking spray. Pour two pancakes into the pan, using ¼ c. batter for each. When the top begins to bubble flip the pancake and allow to cook for two more minutes on the other side.
Remove from pan and serve.