according to the Disney recipe they sent me a couple of years ago, there is approximately 1/4 ounce of Kahlua liqueur in each Zebra dome. It is added after the cooking so it does not cook down at all, and since it is under the waxy-like icing it does not evaporate either. There is a warning label in front of the desserts so people can choose whether or not to allow their children to eat Zebra domes. Last time I was there, the kid in front of me (about a 10 yr. old) had a 1/2 dozen of them piled on a dinner plate...I wondered if his parents realized he would be consuming 1.5 ounces of kahlua if he actually ate all those (not to mention way too much sugar, lol.)
The bread pudding is our preferred dessert there...with the rum sauce. And yes, it also really has rum in it (and a warning that it contains alcohol.)