I know low sodium brown gravy mix is nothing more then cornstarch with large amounts of sodium free beef bouillon in it but when you haven't had it for a while it's OK. Recipe for the mix is halved from the original from Dick Logues book "500 Low Sodium Recipes". I like his book since he has a lot of condiments in it. Yes, it has Instant coffee crystals in it but you don't taste it and it adds the color in.

Brown Gravy Mix:
1/2 + 1/3 cup cornstarch
3 Tbs beef bouillon (I use Herb-Ox in packets and it takes 9 of em)
2 tsp Instant Coffee Crystals
1 tsp onion powder
1/2 tsp garlic powder
1/4 tsp black pepper
1/4 tsp paprika

Mix together and store in airtight container. Use 3 Tbs of the mixture with 1 1/2 cups water bring to a boil in a small saucepan and simmer 1 minute while stirring constantly. I might add that I included a bit of a salt sub in there.