I also tried them - I got the recipe from Dr Oz's website..it was gross too. Tasted like sweet chocolate black beans. seems it might be better with something else. Don't know what tho...maybe tofu? I'm not a big fan of tofu and am not adventurist in trying to cook with it....but silken tofu might be good..
I made some black bean brownies using the chewy fudge brownie mix by Duncan Hines (It is vegan), then I added one can of pureed black beans (do not rinse the beans). They were FABULOUS!!! It's great if you need to make a quick dessert.
Oh and no water or oil are needed at all. Just the mix and the beans :)