2 cups all-purpose flour
2 teaspoons baking powder
1 teaspoon baking soda
1/2 teaspoon kosher salt, or slightly less table salt
3 tablespoons sugar
2 large eggs, lightly beaten
3 cups buttermilk
4 tablespoons unsalted butter, melted, plus 1 tablespoon extra for brushing griddle (I’ve made these pancakes with and without the butter mixed in, and can say with confidence they work either way. They’re just richer with it, of course.)
1 cup blueberries, fresh or frozen and thawed (optional)