Rhubarb Butter - cooking recipe

Ingredients

6 cups rhubarb
1/2 cup water
2 1/2 cups sugar
1 teaspoon cinnamon
4 drops red food coloring

Preparation

Cut the rhubarb into 1\" chunks.
Using a blender or a food processor add the water and rhubarb. Blend. This should make about 3 cups of pulp.
Place in a heavy pan. Bring to a boil.
Add sugar and cinnamon.
Cook, stirring all the time until it looks like fruit butter.
If you want add up to 4 drops of food coloring. It will be a beautiful color. Grandma did this, Mom and I never have.
Ladle into hot prepared jars.
Process at once in a hot water bath (212 degrees) for 5 minute.
Remove and place on clean towel.
Cool and wait for that beautiful popping sound.