German Sweet Chocolate Cake
["1 (4 oz.) pkg. sweet chocolate", "2 1/2 c. sifted flour", "1 tsp. salt", "1 tsp. soda", "1 c. buttermilk", "1 c. margarine", "2 c. sugar", "4 eggs", "2 tsp. vanilla"]
["Melt chocolate over low heat.", "Cool.", "Sift flour with salt. Dissolve soda in buttermilk.", "Cream butter.", "Add sugar and continue beating until well blended and fluffy.", "Blend chocolate; add eggs, one at a time, beating well after each.", "Add vanilla. Add flour alternately with buttermilk mixture, mixing well.", "Pour into 3 greased and floured 9-inch layer pans.", "Bake at 350\u00b0 approximately 30 minutes.", "Cool and frost."]
["sweet chocolate", "flour", "salt", "soda", "buttermilk", "margarine", "sugar", "eggs", "vanilla"]