Three level TBS of flour, one tsp of bullion, your favorite, chicken/beef, and pepper to your taste
1 cup of cold water, add the flour and bullion, pepper in a small jar with lid, shake till flour dissolves.
Cook on low/medium heat and STIR till consistency liked. I usually do 1 cup per person.
You can also add ground sausage/beef over a Grand's biscuit or toast for that SOS look.
Also works for nuked or mashed potato's, or anywhere you would use gravy.