This is shockingly good.

2 oz bourbon

1 oz lemon

1/2 oz St. Germain (i think fresh pineapple juice would be a good substitute)

4 blackberries

5 leaves basil

1/2 tsp aged balsamic vinegar

Demitasse spoonful brown sugar (probably half teaspoon)

Muddled the sugar, basil, blackberries and balsamic, added the rest and shook with ice, strained through a fine mesh strainer over one big ice cube.

I wasn’t sure at first sip, just thought “I’d serve this to someone” but it is very, very good. I don’t taste the individual ingredients, it all combined into a delicious whole.