Sweet Potato Pie
["4 to 5 sweet potatoes", "1 stick butter", "2 c. sugar", "3 eggs", "1 tsp. vanilla", "1 can condensed milk"]
["Cut potatoes up and put on to boil.", "When they are done, take off the stove, drain water and mash potatoes.", "Add butter, sugar, eggs, condensed milk and vanilla.", "Mix well.", "Pour into three pie crusts and cook in the oven at 350\u00b0 until done."]
["sweet potatoes", "butter", "sugar", "eggs", "vanilla", "condensed milk"]