Whisk together the flour, baking powder, baking soda, salt and sugar. Add the butter and buttermilk. Stir with spoon. Add egg and sourdough starter and continue stirring. Fold in blueberries.
Add a little oil or butter to a hot grill or skillet. I use 1/3 cup pancake mix per pancake. Cook on each side until brown. Makes 8 pancakes.