Rhubarb Pie 6 cups rhubarb 1 cup sugar 1/4 cup tapioca Mix and let sit for 15 minutes, stirring occasionally. Cut crust into 2/3 (for bottom) and 1/3 (for top). Bake at 450 for 30 minutes Reduce oven to 350, place drip sheet under pie, and bake 30 minutes