A refreshing party drink that takes almost no effort to prepare. This "drinking vinegar" has a nice kick even without alcohol.
Mix the pineapple chunks, sugar and (optional) fresh ginger. Put in a container with a lid and refrigerate for 1-2 days.
Macerate the fresh mint. (Rub it so with your hands or with a wooden spoon, in order to release the minty aroma.) Add it to the pineapple, sugar, and (optional) ginger mixture. Continue to refrigerate for another 1-2 days.
Add the apple cider vinegar, stir and refrigerate for another 1-2 days. It helps to keep the timing written on the container top, so you know when you added each ingredient
When ready to serve, (straight or on the rocks, i.e. with ice cubes) strain out the fresh mint, the pineapple chunks and the ginger. Add club soda or seltzer to taste, plus if desired, light rum or gin.
To peel fresh ginger, use my easy method.
For individual servings, I like a 1-to-1 ratio of shrub to club soda or seltzer. And if I add alcohol, it's usually a 1 ounce shot in a glass that is 2 ounces shrub, 2 ounces club soda or seltzer and lots of ice. The proportions are a matter of personal preference. For a party, you might set out the shrub, club soda/seltzer, and alcohol, so guests can make their own. Another option is to pre-mix the drinks using my proportions, with an extra bottle of club soda/seltzer in case guests prefer a lighter drink.