Note: if you want to make this with an egg white, you can do a 1:1 substitution for the aquafaba. It just won’t be vegan anymore.
1-3/4 ounce sloe gin, I used Spirit Works Distillery*
3/4 ounce freshly squeezed lemon juice
1/2 ounce simple syrup (1:1 ratio)
1 ounce aquafaba, see note above
2 ounces chilled club soda, Q-Club used here
In a shaker, combine sloe gin, lemon juice, simple syrup and squafaba. Dry shake with 1 ice cube until very frothy (I find this takes anywhere from 15 -30 seconds). Then add ice until shaker is 2/3 full. Shake again to combine and chill for about 20 seconds. Strain into a highball glass and add club soda.