So simple to create at home, Bitters and Shrub Syrups will add an incredible depth of flavor to any beverage. Historically, cocktail bitters, drinking vinegars, and even infused syrups were originally used for curing sickness with high concentrations of beneficial (healing) herbs and flowers. The slight alcohol base of bitters kept the often-fragile ingredients from rotting in the age before refrigeration. Bitters in the modern cocktail bar are embraced...