Whisk the flour, cornmeal, baking powder, kosher salt, and black pepper. In a large bowl, melt the butter and allow it to cool. Slowly whisk in the buttermilk. Whisk in the eggs.
2 cups All-purpose flour, 2/3 cup Cornmeal, 4 tsps Baking powder, 1 tsp Kosher salt, 1/2 tsp Ground black pepper, 2/3 cup Unsalted butter, 1 1/4 cups Buttermilk, 2 large Eggs
Stir in half of the dry ingredients, add the parsley, green onions, fontina cheese, and Pecorino Romano. Add the remaining flour mixture, stirring just until combined and no large flour pockets remain. Set aside and allow the muffin batter to rest for 15 minutes while you preheat the oven.
1/3 cup Fresh Italian flat-leaf parsley, 1/3 cup Green onions, 2/3 cup Fontina cheese, 2/3 cup Pecorino Romano
Preheat oven to 400ºF. Prepare a 12-cup muffin pan with nonstick baking spray that contains flour or line it with paper liners.
Divide the batter evenly among the prepared muffin cups. Sprinkle a little extra fontina cheese on top of each muffin.
Bake for 10 minutes, reduce the oven temperature to 375ºF, and continue to bake for another 6-8 minutes until golden and a toothpick inserted in the center comes out with a few moist crumbs. Cool in the pan for 10 minutes, remove the muffins to a wire rack to cool completely.