This homemade Cream of Chicken Soup Base Recipe is one you'll want to keep in your back pocket. One day, I wanted to make a casserole but didn't have canned cream of chicken soup since I never buy it. It was so simple to make it myself! This freezes well, too. I don't recommend this recipe as a "stand alone" soup, but it's a perfect substitute for canned cream of chicken soup that you'll find in casserole recipes.