Food Network and Bob Evans provide good recipes for sausage gravy; both recipes include 1 pound of sausage, all-purpose flour, and salt and pepper for taste. Food Network's recipe takes about 45 minutes total, while Bob Evans' smaller recipe is ready in 20.
The Food Network recipe requires breaking the sausage into small pieces and frying them at medium-high in a large skillet in an even layer. Once the pieces brown, bring the heat to medium-low. Add 1/3 cup of all-purpose flour in small amounts while stirring the sausage.
Slowly pour about 3 or 4 cups of whole milk into the sausage and all-purpose flour mixture. Continue to stir the mixture until it thickens. Add 1/2 teaspoon of salt and 2 teaspoons of pepper. The gravy thickens in about 10 to 12 minutes. Serve the gravy over warm biscuits. The recipe yields 12 servings.
The Bob Evans recipe uses similar ingredients, including 2 cups of milk, 1/4 cup of all-purpose flour and 1 pound of sausage. It also requires the same preparation, but the gravy thickens in less time. The recipe yields four servings. Using 1 pound of sausage makes the sausage gravy heartier as each serving has more meat.
Both recipes suggest more or less salt and pepper to taste. Use double the quantities of ingredients to increase the amount of servings.