A.1. Gravy: Cook ingredients in saucepan on medium heat until heated through. Keep warm.
CHICKEN-FRIED Steak: Pound steak pieces to 1/4-inch thickness; season with salt and pepper. Place in non-reactive container. Pour buttermilk over steak; stir to evenly coat all pieces. Refrigerate 1 hour.
REMOVE steaks from buttermilk; reserve buttermilk. Dredge steaks in flour, then return to buttermilk, turning to evenly coat both sides of each. Dredge in flour again; gently shake off excess flour.
ADD to 350ºF oil in deep fryer; cook until lightly browned and done.
FOR each serving: Heat 1 tsp. oil in small skillet on medium heat. Add egg; cook over hard. Place on bottom half of biscuit; top with 1/2 cheese slice and top of biscuit, cut-side up. Cover with second 1/2 of cheese slice, 1 Chicken-Fried Steak and 2 Tbsp. A.1. Gravy.