Melt 6 tablespoons of butter in a saucepan, add 6 tbsp of flour and cook it out. Gradually add 2 cups of chicken stock and a cup of milk. Season with 1 teaspoon of each garlic powder, onion powder, salt, and ½ teaspoon of pepper. Cook until thickened then remove from heat and use in the recipe. This makes about 20 ounces which is equivalent to 2 cans that we need to make this slow cooker chicken and noodles.