Place baking soda into sour milk (2 t vinegar in at least 2% milk), stir to dissolve. Combine all ingredients except boiling water and stir. Add boiling water and stir. Pour into lined cupcake tins. Bake at 350 degrees for 18-20 minutes. Makes 12 cupcakes.
Melt butter and mix in vanilla. Add to the confectioners' sugar. Add food coloring for added fun. Add milk one tablespoon at a time until it’s a spreadable consistency.