Do you have a bottle of Saint Germain's elderflower liqueur on your home bar gathering dust? It's time to break out this very versatile and trendy ingredient. Elderflower liqueur comes from the same plant as tart, juicy, antioxidant-rich elderberries. The flowers are mild and floral, though, and perfectly complement juniper-based liquors like gin (plus, some gins are even already infused with elderflower!). These recipes are some of our favorite ways to enjoy this must-have ingredient.