Barbecue Corn Bread
["10 oz. coarsely chopped sausage (chorizo, Italian or similar)", "1 c. chopped onion", "3 Tbsp. softened butter or margarine", "1 c. sour cream", "3 eggs", "1 c. corn meal", "3/4 c. all-purpose flour", "1 tsp. baking soda", "1 tsp. baking powder", "1/2 tsp. salt", "1 c. milk", "1 c. grated sharp Cheddar cheese", "1 1/4 c. cooked corn"]
["In a heavy skillet, fry the sausage until lightly browned and all fat has been rendered.", "Remove to drain on paper towels.", "In 1 tablespoon remaining fat, saute onion until lightly browned.", "Set aside."]
["sausage", "onion", "butter", "sour cream", "eggs", "corn meal", "all-purpose", "baking soda", "baking powder", "salt", "milk", "Cheddar cheese", "corn"]