Bonny Prince Charlie is drinkable heavy cocktail at 1.6 standard drinks. Stirred with 40ml whisky and 10ml whisky liqueur drambuie with 10ml lime juice as well as 200ml ice and best with an entree or small snack. Just fill glass with ice to chill then add ice to mixing glass and add ingredients to mixing glass. Stir well and strain into glass over ice and served in a old fashioned glass cold.