Biscuits and sausage gravy — fluffy biscuits split open and smothered in a thick, peppery white gravy made from pork sausage drippings, flour, and milk — is the Appalachian and Southern breakfast that sustained working-class families on the cheapest ingredients available: flour, lard, milk, and a small amount of sausage stretched into a gravy that fed a table. The technique is a white roux (sausage fat + flour) thinned with milk — the same béchamel principle as French white sauce, arrived at independently through the economy of the Southern kitchen. The gravy's peppery, savoury, meaty richness against the tender, buttery biscuit is one of the most satisfying bites in American food.
Pork breakfast sausage (seasoned ground pork — sage, black pepper, cayenne, salt) browned and crumbled in a skillet. The sausage is removed, leaving the rendered fat. Flour is stirred into the fat (2-3 tablespoons) and cooked for 1-2 minutes. Whole milk is whisked in gradually until the gravy is thick enough to coat a spoon heavily. The sausage is returned. The gravy is seasoned aggressively with black pepper (the dominant seasoning). The finished gravy — thick, white-to-pale-grey, studded with sausage crumbles — is ladled over split, hot biscuits.
1) The sausage fat is the roux base — do not drain it. The fat provides the flavour. 2) Cook the flour in the fat for 1-2 minutes to eliminate the raw flour taste. 3) Add milk gradually, whisking constantly, to prevent lumps. 4) Black pepper is the primary seasoning — the gravy should be noticeably, aggressively peppery. 5) The gravy must be thick — it should mound on the biscuit and flow slowly, not pool as liquid.
Sawmill gravy — the name for the same white gravy in some Appalachian traditions, reportedly named for the gravy served at logging camps. The technique is identical; the name is regional. Bob Evans restaurants built a national chain on biscuits and gravy. Waffle House serves it 24 hours a day. Both represent the democratisation of a technique that began in Appalachian poverty.
Draining the sausage fat — the fat IS the gravy. Too little pepper — the gravy is bland and creamy without the pepper's bite. Thin gravy — keep reducing or add more roux.
Ronni Lundy — Victuals; Edna Lewis — The Taste of Country Cooking; Nathalie Dupree — Mastering the Art of Southern Cooking