A classic, from-scratch recipe for a rich and flavorful Thanksgiving gravy. The recipe builds a deep flavor base by slowly cooking chopped yellow onions in butter until they are lightly browned. A traditional roux is made with flour to thicken the gravy, which is then created by whisking in a hot mixture of defatted turkey drippings and chicken stock. The gravy is finished with a splash of Cognac or brandy for extra depth and can be enriched with optional white wine and heavy cream.
Find it online: https://cookupjoy.com/thanksgiving-gravy-from-scratch/