Sour Cream Pound Cake
["2 lb. butter", "2 1/2 c. sugar", "1 tsp. baking powder", "1/4 tsp. salt", "3 c. plain flour", "6 eggs", "8 oz. sour cream", "2 tsp. vanilla"]
["Sift flour, baking powder and salt 3 or 4 times (important). Cream butter and sugar; add eggs, one at a time, beating good. Add vanilla.", "Fold in flour, alternating with sour cream.", "Bake 1 hour and 20 minutes at 300\u00b0."]
["butter", "sugar", "baking powder", "salt", "flour", "eggs", "sour cream", "vanilla"]