This is the ultimate ice cream sundae. Obviously, if you're not a peanut-eater, it won't be for you, but for everyone else it is the stuff of dreams. Last time I made this sauce, I nearly had to make another batch, I'd eaten so much before even getting the ice creams out of the freezer. I made a jar of this for a friend to take home for her supper recently. As soon as she'd had it she sent a text saying, "Bottle that sauce, make millions". Well, maybe, but until then, here's the recipe.