Basically the only reason I made these was because we had the Rootbeer concentrate on hand and I was curious to see what they would taste like. I can't say I would make these again, unless they were per request for a die-hard Rootbeer fan, but they were decent. I expected more of the Rootbeer flavor, and all you got was sort of an aftertaste of it. Maybe adding more of the concentrate would amp up the flavor a little bit, I'm not sure.
I found the recipe HERE if you want to check it out. I omitted the Hot Fudge because we did not have any on hand. Andy liked them and was disappointed I only made 1/2 a batch (which made 8 cupcakes). :-)