Heat 1 tablespoon oil or butter in a large skillet over medium-high heat. Crack 4 eggs into skillet, and cook, uncovered, until whites are set, about 2 minutes. (If you prefer to cook your yolks further, cover skillet.) Transfer to a plate. Repeat. Arrange 1 or 2 biscuits on each plate. Top with gravy. Place 1 egg on each biscuit. Season with salt, pepper, and hot sauce.