Preheat your oven to 200 degrees F. Place a baking sheet in the oven. This is where we’re going to put the pancakes once they’re done cooking so they stay warm.
In a medium bowl, whisk together the flour, cornmeal, baking powder, baking soda and salt. Set aside.
In a measuring cup or small bowl, measure out the buttermilk. Whisk in the egg, melted butter and honey until smooth.
Preheat your cast iron pan or griddle over medium heat. When warm, brush with a teaspoon or two of oil or butter. (I favor oil because it doesn’t burn but man does butter taste good.)
Pour the liquid ingredients into the dry ingredients and mix until you no longer see any speckles of flour. Be sure not to overmix—this will result in tough pancakes. Add the blueberries and fold into the batter. Using a 1/4 cup measure, drop circles of batter onto your skillet. Don’t be shy to take your spatula and help shape the pancakes into circles.
Cook in batches, turning once, until golden brown on both sides, about 1 to 2 minutes. Transfer the pancakes to the oven to keep warm. Repeat with the remaining batter. Serve with maple syrup and pats of butter.