Run the lemon wedge around the rim of a coupe or rocks glass, then dip the damp rim into a shallow plate of sugar to coat it evenly.

Set the glass aside to let the sugar dry slightly while you build the drink.

Add the cranberry juice, lemon juice, simple syrup, and egg white to a cocktail shaker without ice.

Shake hard for 15 seconds with no ice; this dry shake is what builds the foam on top.

Add ice to the shaker and shake again for another 15 seconds, until the outside of the shaker feels frost-cold to the touch.

Strain into the sugar-rimmed glass, pouring carefully down the center so the rim stays intact.

Garnish with the dehydrated lemon wheel resting across the rim.