How to Make It
Whisk together the flour, cornmeal, sugar, baking powder, baking soda, and salt in a large bowl. Whisk together the buttermilk, melted butter, and egg in a medium bowl. Whisk the wet ingredients into the dry ingredients, then fold in the blueberries.
Heat a large nonstick skillet or griddle over medium heat. Dip a paper towel in melted butter and wipe it on the bottom of the skillet to lightly grease. For each pancake, spoon a scant ½ cup of batter onto the prepared skillet. Cook until cooked through, 2 to 3 minutes per side. Repeat, buttering the skillet between batches. Serve topped with butter and maple syrup.