A quick, homemade au jus to serve with French Dip sandwiches. Beats the powdered packets hands down!
In a large, shallow skillet over moderate heat, melt butter. Add shallots to butter and saute 2 minutes. Add flour to butter and shallot and cook a minute longer. Whisk in sherry and cook liquid out. Whisk in consomme in a slow stream. Bring sauce to a bubble and allow to simmer over low heat until ready to serve.