Place all of the ingredients except the oil in a medium nonreactive bowl, stir to combine, and let sit for 15 minutes. Then, while whisking continuously, add the oil in a slow, steady stream until it’s fully incorporated. Refrigerate in a container with a tightfitting lid for up to 4 days.
The tropical flavors of lemon grass and pineapple make this twist on the Lemon Drop a special treat for the summer. A lemon grass infused simple syrup, Stoli Citros Vodka and the very floral St. Germain Elderflower Liqueur deliver further depth of flavor and help make this a solid step up beyond your first Lemon Drop.