Chocolate Cake
["1 c. butter", "1/2 c. cocoa", "1/4 tsp. salt", "2 c. sugar", "1 tsp. soda", "2 c. flour", "3 eggs", "1 c. buttermilk", "1 tsp. vanilla"]
["Cream butter and sugar; add eggs, one at a time.", "Sift flour, cocoa and salt three times.", "Dissolve soda in buttermilk; add alternately with flour to sugar-butter-egg mixture.", "Add vanilla. Bake in 3 or 4 layers in a 325\u00b0 oven for 25 minutes."]
["butter", "cocoa", "salt", "sugar", "soda", "flour", "eggs", "buttermilk", "vanilla"]