In a large bowl sift the flour, baking powder, baking soda, sugar, and salt together.
In a separate bowl, whisk the eggs. Add buttermilk.
Mix dry and wet ingredients. Use a wooden spatula or electric mixer to combine ingredients. DO NOT OVERMIX. Fold in the blueberries. If batter seems too thick, add 1/4 cup of milk until consistency is correct.
Cook pancakes on a thoroughly oiled hot pan or griddle.
When the pancake is ready, lightly brush the hot pancake with melted butter.