Ingredients

• cooking spray
• 16 fluid ounces citrus-flavored energy drink (such as Red Bull®)
• 4 (.25 ounce) packages unflavored gelatin
• 2 cups cold vodka

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Instructions

1. Grease an 8-inch square baking pan lightly with cooking spray.
2. Bring energy drink to a boil in a heavy-bottomed saucepan over medium-high heat. Reduce to a gentle simmer; stir in gelatin until completely dissolved, 1 to 2 minutes. Remove from heat and let cool slightly, about 10 minutes.
3. Pour vodka into the gelatin mixture; stir gently to combine. Pour into the prepared baking pan.
4. Refrigerate gelatin mixture until set, about 6 hours. Run a knife under hot water to make it easier to cut gelatin mixture into 2-inch squares.