Unflavored gelatin opens up an entire new world of jello shot possibilities. Allowing you to be completely creative. This jello makes for an unflavored base; leaving you room to color it with fresh juices, intense liquors, or anything else your happy little brain can think of!
There is a brand of unflavored gelatin called Knox. You can usually find four 1/2 –ounce packets of gelatin per box. If you were to use two of those packets along with two cups of liquid mix, it should make eighteen to twenty shots in 1-ounce containers. In this mix, use a half-cup of hot juice instead of hot water. This will give you the best flavor.
So, to sum it up, this would be 2 packets of unflavored gelatin, 1-cup liquor, ½ cup water, and a ½ cup juice. There will be recipes included on this site that call for this kind of gelatin. These could provide you with good examples, if you decide to think up some of your own creations.