Dry shake all the ingredients (except the bitters), then dump into a pilsner glass filled with crushed ice.
2.
Swizzle until cold.
3.
Add the bitters and swizzle them into the top of the drink.
4.
Garnish with the mint sprig and serve with a straw.
Notes
Swizzling the bitters on top of the swizzle, instead of with the other ingredients, gives you a blast of aromatics as you sip the drink. Instructions were inferred from the swizzle pattern and headnote; the full instruction text was cut off in the source photo.