Pour 0.1 oz of creme de cacao, 0.7 oz of Benedictine, and 1 oz of Dubonnet into a mixing glass
Add 3 dashes of Angostura bitters, 1 oz of cognac, and 1 oz of handmade bourbon
Fill the glass with ice cubes and mix with a bar spoon
Carefully strain with a julep strainer into a bottle and close with a stopper
Place an ice sphere and lemon zest into a rocks glass
Serve on a tray