This is my mother's recipe that she has been making for as long as I can remember. She always makes this to serve with steamed artichokes. Though I have eaten this sauce plenty of times, I only just recently made it for myself. I couldn't believe how easy it was to make. I don't have a double boiler pan set, so I boiled a small pot of water and put a glass bowl on top so it sat about 1-2 inches from the water. It worked perfectly.