If you like vodka lemonade cocktails, you'll love this refreshing and fun Jello martini.
Stir lemon gelatin and boiling water together in a bowl until fully dissolved. Add vodka and lemon juice.
Coat a 2-quart square baking dish with nonstick cooking spray. Pour mixture into dish. Chill for 3 hours or until firm. Cut into 1-inch squares. Serve in sugar-rimmed cocktail glasses. Garnish with fresh lemon peel, if desired.