Buttermilk is dainty mild cocktail at 0.5 standard drinks. Shaken with 30ml butterscotch liqueur maison and 20ml yoghurt with 10ml soda water as well as 30ml milk including 100ml ice and served with or for breakfast. Just add half the ice to shaker then add all ingredients to shaker and quick shake to mix. Pour all into glass and fill glass with ice and served in a old fashioned glass cold.