1Heat oven to 425°F. Generously grease bottom and side of 10-inch cast-iron skillet, 9-inch round pan or 8-inch square pan with shortening. If using skillet, heat greased skillet in oven about 5 minutes or until hot.
2Stir all ingredients until smooth. Pour batter into pan.
3Bake skillet 15 to 18 minutes, round or square pan 18 to 22 minutes, or until golden brown. Serve warm.