Following your box instructions add 1 cup of water to a pot and bring to a boil. Once boiling remove from heat and add in blue jello powder. Stir for two minutes. Once dissolved add in 1 cup cold Vodka (or spirit of choice). Add to a measuring cup and let come to room temperature while your second layer finishes firming. Once your second layer is formed and your third layer liquid is at room temperature, carefully add your third layer liquid on top of your second layer. Add back into the refrigerator for 2-4 hours. Let completely firm up.
After your jello is fully formed, carefully cut out your jello shots from your pan (unless you used cups, leave them in the cup) and add to your serving platter. Keep in your refrigerator until ready to serve. When ready to serve sprinkle Pop Rocks over the top of your jello shots for a fun surprise! Serve immediately.
These jello shots are made in layers to get the red, white, and blue effect. You can make these in a 9 x 13 pan or pour in disposal sauce holders. Please wait the full two hours to let your layers firm before adding another layer. Also, make sure to let jello liquid come down to room temperature before adding it on top of a previous layer. Doing these things will help keep your layers from mixing.