Rhubarb Crisp

Ingredients
- 4 c cut rhubarb unpeeled 12 inch
- 1 c sugar
- 14 c unsifted flour
- 12 tsp cinnamon or more to taste
- 12 c cold water
- red food coloring
Directions
- Pour mixed dry ingredients over rhubarb pieces in a bowl
- Add cold water and mix together
- Add food coloring
- Pour into a greased pan
- Cover with topping