Freezer Rhubarb Jam

My girls love this jam.  We have 2 rhubarb plants that are out of control.
Ingredients:
12 c. finely chopped rhubarb
5 c. sugar (or 4c. + 3-4 bananas)

Directions:
1. Mix sugar and rhubarb and put in a bowl in the fridge overnight.
2. In the morning, cook for 1 1/2 hours (until thick)
3. Blend and pour into pint jars.
4. Freeze (leave room for expansion at the top of the jar)