Classic Rhubarb Crisp with Frozen Rhubarb
- 2 pounds of sliced rhubarb (use fresh or frozen; refer to notes for frozen details)
- 1/4 cup cornstarch
- 3/4 cup sugar
- 1/2 teaspoon cinnamon
- 1 cup oats
- 1/2 cup flour
- 1/2 cup sugar
- 1/2 teaspoon cinnamon
- Pinch of salt
- 1 stick of cold butter, cut into cubes (1 stick equals 8 tablespoons or 1/2 cup)