"Granny'S" Sweet Potato Pie
["4 medium sweet potatoes", "1 stick margarine", "2 eggs", "3/4 to 1 c. sugar", "pinch of salt", "1/2 c. milk", "2 tsp. vanilla", "2 (9-inch) unbaked pie shells"]
["Slice potatoes thin and boil until soft.", "Drain water and add margarine, eggs, sugar, salt and milk.", "Beat on high until all lumps are gone.", "Add vanilla and mix well.", "Pour into shells and bake at 400\u00b0 approximately 30 to 40 minutes."]
["sweet potatoes", "margarine", "eggs", "sugar", "salt", "milk", "vanilla"]