Prepare chicken broth by adding two chicken bouillon cubes (wyler's or knorr's) to 1 and 3/4 cup boiling water. Let sit while you combine butter and flour

In medium saucepan or dutch oven, melt butter over medium heat. Once butter is fully melted, add flour and stir until mixture is smooth and bubbly. Remove from heat

Stir the prepared broth until the bouillon cubes are fully mixed. Combined broth and milk will measure 3 and 1/2 cups. Add this to the butter mixture

Heat over medium heat, stirring constantly until mixture starts bubbling. Continue to stir for 1 minute

Add cooked chicken and stir. Covert and heat for about 5 minutes or so until the chicken is warmed through

Serve with toast!