Rubber is exquisite watered down cocktail at 0.3 standard drinks. Built with 30ml blueberry liqueur vedrenne and 30ml blueberry pulp with 130ml jelly berry and best with dessert type dishes. Just set berry jelly into bottom of glass then slice jelly with a knife and pour in the blue berry pulp. Add liqueur on top and serve with spoon and served in a old fashioned glass cold.