In a mixing bowl combine simple syrup, vodka, lime juice (squeezed), and gelatin together, mix with a fork unit the gelatin has softened, and you are left with a jelly.
In a sauce pan bring champagne to a low boil. (Careful it foams over quickly.)
Remove from heat, and add it to the gelatin mixture. Set aside and let it cool for about 10 minutes.
Line a 9x13 baking dish with plastic wrap.
Pour gelatin mixture into the pan, and chill for 4 hours, or overnight.
Cut into squares, sprinkle with sparkling sugar and serve.
Notes
Fun recipe for champagne jello shots. While it doesn't have to be only on New Year's Eve, I can't think of a better time to serve them!