local organic food delivery service we just started ordering from. (If you live in the Indy or Cincy area, you must check it out.) Anyways, all the fruit from those peels is now a four citrus marmalade (recipe here). I can't say it's my favorite thing I've ever made... I have never really liked orange marmalade, but it just looked so good! And you never know til you try, right?
I'll just pour on a little honey to sweeten it more when I use it. I'm a sugar fiend.