Sweet Potato Pie
["2 (9-inch) unbaked pie crusts", "6 medium or 3 large sweet potatoes", "1/4 c. margarine, melted", "1 c. brown sugar", "3 eggs", "1 Tbsp. vanilla flavoring"]
["Peel and slice potatoes; boil in salt water until tender, then drain.", "Blend potatoes, margarine, sugar, eggs and milk; process until smooth.", "Add vanilla.", "Divide filling between the unbaked pie shells.", "Bake at 325\u00b0 for 20 to 25 minutes."]
["sweet potatoes", "margarine", "brown sugar", "eggs", "vanilla flavoring"]