On those days - and even those years - that call for coffee throughout the day and into the night, there's a supercharged cold brew & tonic that's up to the task. This one starts with gin and ends with fruit (vitamin C) and a vegetable/happy little tree (fine, it's a rosemary sprig). Go ahead; enjoy an adult beverage while appeasing your inner child who still likes to play with her food.
Garnish
Use a cocktail shaker to blend gin and simple syrup over ice until well chilled. Next, place a large ice cube into a glass and strain the gin and sugar mix into the glass. Add tonic water.
Gently pour the cold brew concentrate on top (it should float above the tonic), then wipe the rim of the glass with lemon peel. Garnish the drink with a lemon wedge and a sprig of rosemary.