While it's not actually a drink in the game, using snowberries as the base of an alcoholic drink sounds like a great idea! We were unable to find cranberries in a fresh or frozen form, so we had to go with dehydrated. Additionally, we used a berry wine and I think that it really gave the whole thing the extra fruity flavor.
It was a huge hit and 8 of us managed to finish off 3/4 of the batch in one evening. We'd probably have drank more if we hadn't also had other drinks.
I hope you enjoy!
Note where Faendal interrupts my peaceful Skyrim recording by coughing and yawning. I miss Lydia... .