this weekend, I had the apple martini from Macaroni Grill and it was WONDERFUL! The server suggested having it frozen, and that made a huge difference.

The description is as follows:
Sour Apple Martini
The ultimate temptation! ABSOLUT Vodka and DeKuyper Sour Apple Pucker.

Does anyone know if that's all there is to it, or are there other ingredients?

Thanks! Cheers!