Grapefruit and Sage Gimlet

Kick off the weekend with this inventive gimlet variation, in which tangy grapefruit juice replaces the traditional lemon juice, and sage is added to impart an herbaceous flavor. The recipe makes enough sage simple syrup for about 20 drinks, so save the leftovers in a clean container in the fridge for up to 2 weeks—or invite some friends over and show off your cocktail-making skills.