Sweet Potato Pie
["2 c. cooked, mashed sweet potatoes", "2 Tbsp. butter or margarine, softened", "2 eggs", "1 c. sugar", "1 Tbsp. all-purpose flour", "1/2 tsp. salt", "1/2 c. buttermilk", "1/4 tsp. baking soda", "1 tsp. vanilla extract", "1 unbaked 9-inch pastry shell"]
["Combine sweet potatoes, butter and eggs, mixing well.", "Combine sugar, flour and salt; stir into potato mixture.", "Combine buttermilk and soda; add to potato mixture, mixing well.", "Stir in vanilla.", "Pour filling into pastry shell.", "Bake at 350\u00b0 for 1 hour and 10 minutes or until set.", "Serve warm or cool."]
["potatoes", "butter", "eggs", "sugar", "flour", "salt", "buttermilk", "baking soda", "vanilla extract", "pastry shell"]