Grandmother Davis' Sweet potato pie

Grandmother Davis' Sweet potato pie ? yields 2 pies 3 medium sweet potatoes boiled until soft then peel 1 cup sugar 1/2 cup brown sugar 1 stick of butter softened 1/4 cup can milk 1 tsp vanilla flavor Cinnamon and nutmeg to taste Mix ingredients well Bake deep dish pie crust with butter cinnamon and sugar on bottom in 375 degree oven for apx. 15 min. Pour mixture into pie crust bake for apx. 30 minutes