Sift, then measure flour. Sift again with baking soda, salt and spices. Cream butter until light and lemon colored. Add sugar gradually, beating after each addition. Slowly add the eggs which have been beaten until they are almost as thick as whipped cream. Combine vinegar and milk. Alternately add the dry and the liquid ingredients, beating until smooth after each addition. Turn into a greased cake pan. Bake in a moderate oven. Frost with butter frosting. Amount: 8x8-inch pan Temperature: 180ºC . Time: 40-45 minutes