In a small mixing bowl, whisk together buttermilk, egg, and olive oil. In a large mixing bowl, whisk together flour, sugar, minced onion, baking powder, baking soda, salt, garlic powder, dried rosemary, and dried basil. Stir in cheddar and parmesan cheeses.
Add buttermilk mixture to flour mixture and stir, blending well. Pour into prepared pans. Bake 45 to 65 minutes depending on size of pan or until a knife inserted near the center comes out clean. Remove from the pan and cool on a wire rack.
Submitted By: Marianne
Original Source: Southern Living