Roast a turkey over carrots , onions , garlic , thyme , celery , and bay leaves so the turkey drippings mix with the veggies . Strain out the veggies and juice into bowl 1 and set that liquid to the side . Then , in bowl 2 , press the juice out of the veggies . Discard veggies . Pour veggie juice from bowl 2 into a 4 cup measuring cup . Mix up liquid in bowl 1 and pour into the measuring cup until you ' ve got 1 . 52 cups of liquid . Top it off with chicken stock so you have 4 cups of liquid total . Put 4 tablespoons of butter in a pot on mediumhigh heat . Once it ' s melted and done frothing , add 4 tablespoons of flour and mix continuously for about 5 minutes on medium heat until the mixture is a mediumtodark brown . It will smell nice and nutty . Whisk furiously as you slowly pour in the 4 cups of liquid . Reduce heat to a high simmer or mediumlow boil . Stir occasionally and reduce until it ' s at the consistency you like . Also works well for beef gravy but use beef stock instead of chicken stock and use your best judgement on the drippings since some beef drippings can have a much higher fattojuice ratio .