Bring <quantity>8<unit>fl oz</unit></quantity> of water to a simmer over medium heat

Add <quantity>8<unit>oz</unit></quantity> of white sugar. Stir until it is dissolved

Transfer to a container to cool. The simple syrup is ready

Add <quantity>1</quantity> egg white to the larger cocktail shaker tin

Add <quantity>¾<unit>fl oz</unit></quantity> of lemon juice, <quantity>¾<unit>fl oz</unit></quantity> of the simple syrup and <quantity>2<unit>fl oz</unit></quantity> of bourbon to the smaller cocktail shaker tin

Pour the smaller tin into the larger one and dry shake for approximately 3s

Fill the smaller tin with ice. Connect the tins and shake them for approximately 20s. Strain the cocktail into a chilled glass

Express a lemon twist over the glass and add <quantity>3<unit>dashes</unit></quantity> of Angostura bitters in a line across the cocktail

The whiskey sour is ready. Make as many as you'd like!