I dunno squat about calculating a recipe, but I do know there's a great cream soap group on Yahoo that has a wealth of info (I'm still reading it) as well as recipes, tutorials, pics, etc. All very nice members too. For some reason I am still dragging my feet with the cream soap-maybe when/if the snowy, cold weather starts & I'm stuck at home, lol. Yanno, the more I think about it, I think part of my problem is that I've never seen nor used cream soap, so I have no idea what it's supposed to look/feel like (besides seeing pictures). Hibiscus, do you sell cream soap? I may be interested in trying some out.