This is really Olive Garden Alfredo Sauce. I absolutely love OG Alfredo and I got this recipe from a general manager. He told me after I bugged and bugged and bugged him! I haven't figured out the reheating yet...except for to reheat sauce slowly. Very slowly. The butter starts to separate if you reheat it too fast. The only place that I could find "white sauce base/mix" in my town was at Gordon's Food Service (restaurant supply store), which I guess can also be used to make biscuits. And I thought that 8 fl. oz and 1 cup were the same thing...even on a measuring cup...so I just measure to the 8 oz. line on a measuring cup. That was something that the manager emphasized to me.