In a large bowl, mix boiling water with jelly cubes. Stir until jelly dissolves. Stir in vodka and cold water. Pour mixture into plastic shot glasses and chill in refrigerator for 1 hour or until set.
Very easy recipe. The shots set well and are yummy. I would recommend using flavoured vodka. Taste comes out better than regular vodka. Also note, the recipe says this makes 20 but when I was using my 35 ml shot glasses, I came out with 40!