I hardly call this a recipe, it's more like a process. We started with wet tamarind...about 2 cups. I bought this at an Asian market but you can probably use tamarind paste from Whole Foods or another specialty grocery store. Or, if you're feeling really industrious, buy the whole fruit and make the pulp and deseed them yourself.
We kneaded in 1/2 C organic granulated sugar.
We rolled them into balls, then rolled them in granulated sugar.