Saute the sausage (and shallot if you have it) until the fat has rendered out.
If you don't have about 2 tablespoons fat total, add bacon fat.
Add the flour and spices and mix together. Sauteing briefly.
Add the milk and whisk until it begins to thicken.
Add the water and whisk until it begins to thicken.
Add additional salt and pepper to taste. Pour over the biscuits.