To prebake a pie crust - After you have rolled the crust out and placed it in the pie plate, prick the sides and bottom of the crust with a fork. Place it into the refrigerator at least half an hour. This helps prevent shrinkage when baking. Remove from the fridge, place parchment paper on the bottom of the crust, place dried rice, beans or pie weights on the paper. Bake about 25 minutes. Remove the parchment paper and rice, cool on a wire rack.