1. Cut Rhubarb when the stalks are red.
2. Trim leaves off of stalks.
3. Cut the stalks into 1" pieces.
4. Mix 1 cup sugar with stalks.
5. Place 2 cups stalks in zip type freezer bags, making sure to press out as much air as possible.
Note: My recipe for Strawberry Rhubarb Pie calls for 2 cups of rhubarb. This is the reason why I put 2 cups in the bags. Substitute to match your recipe.