Caramelized Onion Skillet Corn Bread

1 cup cornmeal 1 cup flour 1 teaspoon salt 2 teaspoons baking powder 1 cup buttermilk 1 medium onion , diced 1/2 cup butter 2 eggs 1 Preheat oven to 500[...]

1 teaspoon vegetable oil 1/4 large sweet onion , sliced (Vidalia or Spanish) 3 medium sweet potatoes , peeled and sliced 2 tablespoons packed brown sugar 1/2[...]