Shake first two ingredients vigorously with plenty of ice. Strain into a highball glass filled with ice and top with soda. #shake #ontherocks
To make the shrub: combine 1 cup apple cider vinegar, 1 cup sugar, .75 cup pineapple (sliced), .75 cup ginger (sliced). Allow to simmer for 10-15 min. Cool and puree until smooth.