I did a search, maybe the wrong way, and still can't find a good diabetic BC icing recipe. can you help?

I could be OFF THE WALL here but I don't believe that diabetic and icing can be put in the same sentence.
You could try to create your own recipe that may be better for a diabetic though.
You could use splenda in place of confectionery sugar but I have no clue if you will be able to decorate with it or not. On the Splenda website it tells how to make SPLENDA powdered sugar.
http://splenda.allrecipes.com/Recipe/Recipe.aspx?nprid=149437
Here are the three reviews that were on the site.
"i used this in an icing recipe and it was great. i couldn't see using just by itself as a garnish, but it worked well mixed in a recipe. i think i'll try it tonight in my whipped cream !"

"I made this and it hardened on my cupcakes like cement. It tasted just like straight up cornstarch too. What a waste of 3/4 cup of splenda. The choclate-choclate cupcakes were good though after I peeled off the icing like elmers glue."

"absolutely outstanding! hallelujah! thank you thank you thank you."

PLEASE let us know what you come up with.
Susie

I don't know of any buttercream recipes for a diabetic, but there is an icing recipe that I make for my diabetic father. Take a 16 oz. container of cool whip and slowly add any flavor of instant pudding (small package) while mixing with a mixer. My whole family loves this icing. It is more the consistency of meringue. It does need to be refrigerated. HTH

My DH is a diabetic and I have a diabetic book that gives you a chocolate frosting.

250ml skimmed milk
25ml cornflour
8ml liquid artificial sweetener
60ml cocoa powder
5ml vanilla essence
pinch of salt
37,5ml water.

Combine all ingredients in a saucepan, cook over medium heat until thick.
Allow to cool and beat well until a spreading consistency.

Got the recipe for the chocolate squares too if someone wants that

Also got the recipe for carrot cake topping..........so let me know if you want that as well.

Great! Thanks for the info. I'll play around a bit to see what works.

There's a good diabetic icing recipe here on CC in the recipe section. I've used it.