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["Sift", "flour,", "sugar,", "baking", "powder,", "salt and walnuts until well", "blended.", "Make", "a", "well", "in", "center; add oil, egg yolks, bananas and vanilla.", "Beat with a wooden spoon until a smooth batter forms.", "Beat egg whites, gradually adding cream of", "tartar until", "firm", "peaks form.", "Gently fold whites into batter. Turn into", "ungreased 10-inch tube pan.", "Bake at 325u00b0 for", "55", "minutes, or until a pick inserted in center comes out clean.", "Cool cake in pan inverted on rack.", "With a sharp knife gently", "loosen", "cake from", "sides,", "then bottom of pan.", "Cover cake; let stand several hours for flavor to develop.", "Sprinkle with powdered sugar or drizzle with powdered sugar glaze."]
