Cut the lemons in half lengthwise. Squeeze the lemon juice out into a separate container and set aside. Use a spoon to scoop out all of the insides and pulp. You can use a paring knife to help separate the inside, but be sure not to cut through the lemon peel. Once you have them all completely juiced and cleaned out, place each of the halves into a muffin tin, with the open sides up.
Prepare the Jello mixture by mixing boiling water with two packages of lemon Jello. Stir until the Jello has completely disolved. Then, add the citrus vodka, strained lemon juice that you got from the lemons.
Pour the Jello mixture into each lemon half so that they are completely full. Carefully move the muffin tin to the fridge and chill for at least 4 hours, until hardened.
Once the Jello is firm, and you're ready to serve, cut each half into three slices. Turn the lemon halves over on a cutting board and then make each slice in one fluid motion using a very sharp, warm, non-serrated knife. Share with friends and enjoy!!
This recipe can also be modified to use with any other citrus fruit like oranges or limes.
Makes 32 slices