Easy, 2-ingredient, Junk-free homemade jello

My girls love jello but I can't stand to give them all the additives and dyes and junk in the store bought kind.  I searched for a healthy recipe and was pleased to find this one from Momnivore's Dilemma.  You can use any kind of natural juice that you would like to flavor with.

I n g r e d i e n t s:

-4 cups of organic concord grape juice

-2 T of Great Lakes gelatin {GL was the chosen gelatin because it’s from grass-fed cows}

D i r e c t i o n s
1.) Divide the grape juice. 2 cups goes into a pot.  2 cups goes into a bowl.
2.) While you heat the cups in the pot, mix the gelatin into the room temperature juice.
3.) Just before the water boils, add the nearly boiling juice to the bowl of juice/gelatin mix.
4.) Pour into a 9X13 pan and allow to cool for about 15 minutes.
5.) Set in fridge for at least 4 hours