2Mix together the raspberries, sugar, tapioca, lemon juice, cinnamon, and salt until raspberries are well-covered.
3Pour into 9 or 10-inch pastry shell. Dot with butter; add top crust and crimp edge.
4Make slits in the top crust and brush with cream. Bake in the preheated oven for 15 minutes to set the crust. Reduce heat to 375 degrees F (190 degrees C) and bake until crust is golden and filling is bubbly, about 25 minutes more. Allow pie to cool completely before serving.