20th Century is bewitching quite strong cocktail at 1.6 standard drinks. Shaken with 25ml creme de cacao and 25ml gin dry with 25ml vermouth as well as 25ml lemon juice including 100ml ice and good with afternoon tea. Just add ice to shaker then add all ingredients to shaker and shake well. Strain into glass and garnish with lemon knots and served in a saucer glass cold.