While I was looking up how to spell limoncello (which is one of my favorite "desserts" that happen to contain alcohol), I found a few interesting things about it:
1. 96% alcohol is required to extract the lemon oil flavors from the peel. It's diluted afterward.
2. You can make it at home following this recipe using vodka (taking a long time since alcohol content is 40-50%), or this one using 95% grain alcohol (quick), or this one also using 95% grain alcohol (also quick.)
3. Danny DeVito has his own line of limoncello.
4. The yellow stuff in the picture above is limoncello. The dark one is coffee-cello. The picture was taken at La Piola restaurant.