Preheat oven to 350°F. Get pie shell to room temperature. Put in 1st 1/2 of pie shell in pie pan.
Mix raisins and whole berry in pan stove top to light boil. Add flour slowly mixing till thick. Put over or on pie shell in pie pan. Top off with other part of premade pie shell. Pinch the shell together. Cut off leftover around pie. Put slits on top shell.