What would be a good kosher desert to serve at a pot-luck dinner?
I’d try the Sahara or the Gobi. Just stay away from Death Valley. 
Bless your heart, Beadalin, I was hoping the first response would be like this.
And just so I can’t be accused of not helping, here’s a site that has some kosher dessert recipes.
http://www.koshercooking.com/recipes/everyday/dess.html
Now, I haven’t tried any of these, but at least it would give you a feel for something that could be considered kosher in the first place. I’m not sure how familiar you are with the rules if you’d even know where to begin.
No, no. Definitely the Negev.
What was wrong with this thread you started yesterday?
Since you already have a thread started about the same issue, I’ll go ahead and close this one.