Stewart did this on his own as we really needed to use up the whipping cream. I used the Old-Fashioned Chocolate recipe from Joy of Ice Cream. As I had about 10% extra chocolate, I on the fly put in about the same extra proportion (10%) of half and half and whipping cream. I was using the 70% Callebault chocolate so I also added a bit of extra (1 cup total ... should have been 0.75 + 10%). I also added a pinch of salt (per the Ben and Jerry's recipe).