Grease an 8.5x4.5-inch loaf pan with nonstick spray and set aside.
Add 1 cup of champagne, 2 Tbsp fresh lemon juice, and 1/3 cup granulated sugar into a medium sauce pan. Stir until combined.
Sprinkle 5 tsp or 2 envelopes of unflavored, powdered gelatin over the top of the champagne mixture. Gently stir the gelatin into the champagne mixture, then let the mixture sit for a couple minutes to allow the gelatin to bloom. This will hydrate the gelatin and make sure that the jello shots set properly.
Heat the mixture over a low heat for 2-4 minutes, stirring occasionally to help dissolve the gelatin.
Once the gelatin has fully dissolved, remove the sauce pan from heat and place it directly in the fridge to cool for about 5 minutes. Once cooled, stir in the remaining 1/2 cup of champagne and 1/2 cup of vodka.
Pour the mixture into the prepared loaf pan and place in the fridge to chill for at least 2 hours, or overnight. I usually leave the pan uncovered but you can cover it with plastic wrap if you want.
When you're ready to enjoy these champagne jello shots, run an offset spatula or butter knife around the edge of the pan to help loosen the jello.
Flip the pan upside down onto a piece of parchment paper or cutting board to release the jello shots. The jello should easily release from the pan, but if it doesn't, try running hot water over the outer edge of the pan.
Use a sharp knife to cut the jello block into 18 squares and enjoy! If desired, you can also top your jello shots with a sprinkle of edible glitter or luster dust.
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Notes
How Strong Are These Champagne Jello Shots?
If you cut the jello cube into 18 squares, each jello shot will have 1/2 unit of alcohol. If you want them to be less strong, you can use water instead of vodka or use 1/4 cup of vodka. You can also use sparkling cider if you want to make these non-alcoholic!If you want them to be stronger, swap out 1/4 cup of champagne for an additional 1/4 of vodka.
Substitutions and Swaps
Please see the section titled substitutions and swaps above for all the possible substitutions you can make.
Making Different Flavors
Feel free to use different juices to create other flavors! I love using lemon juice, but lime juice, cranberry juice or orange juice would work great too!Just be sure to avoid pineapple, kiwi, mango, ginger root, papaya, fig, or guava juice. They contain an enzyme (protease) which can prevent gelatin from setting firmly.You can also adjust the amount of sugar if you want your jello shots to be sweeter or less sweet.
Using Different Molds
In addition to loaf pans, most small silicone molds will work with this recipe so feel free to get creative with the shape of these champagne jello shots! You could even use a gummy bear mold! The sky's the limit.