While in most recipes, the sour cream isn't added until the end of cooking time, you might need something that will hold up over a longer cooking period. This mock sour cream is a sour cream substitute made with cottage cheese and other ingredients. It's a good option for slow cooking because it won't break down or curdle like dairy sour cream. Try it in stroganoff, meatball dishes, and casseroles. It's also good in dips, whether cooked or not.