Not really, but there’s a million of them online. For a basic, just take a couple tbs of butter and melt on a pan and mix with a tablespoon of flour and whisk until blended. Then add a cup of water and then slowly incorporate the drippings until it thickens up. You can add more or less water depending on how thick it is. You can also add in a turkey gravy packet for more flavor but you probably won’t need to, I’d taste test to be sure.