Place 2 tablespoons (30 ml) of the bacon grease in a heavy, 8- or 9-inch (20-23 cm) cast iron skillet and place the skillet in a preheated 425F (220C) oven until the grease sizzles.
Tilt the pan thoroughly coat the bottom and sides of the skillet before adding the batter.
Meanwhile, sift the flour, baking powder, and salt into a mixing bowl.
Stir in the cornmeal.
Make a well in the center of the flour mixture and add the beaten egg, milk, and remaining bacon grease.
Beat vigorously for 1 minute and pour into the hot skillet.
Bake at 425F (220C) for 20 to 25 minutes, until golden.