Step 1

In a small saucepan, add the gelatin and water and stir to combine. Let sit for 2 minutes to bloom the gelatin, then place the saucepan over low heat. Stir often until the mixture clears and the gelatin dissolves, 3 to 4 minutes.

Step 2

Once dissolved, remove the saucepan from the heat and carefully add the limoncello, lemon juice and vodka. Stir to combine. Once combined, slowly pour in the Prosecco to preserve some of the carbonation; no need to stir again.

Step 3

Pour the mixture into 1-ounce cups and refrigerate at least 4 hours, though overnight is best. Keep chilled until consumption.