House Tonic Syrup Recipe

We have a blast making new tonic syrups to match the seasons. House made tonic syrup is a great way to add a personal touch to a simple cocktail. Try the following base recipe at home and then try to riff on it with seasonal ingredients: 

Serenade House Tonic

¼             lb. Cinchona Bark Cut

½             cup Citric Acid Powder

8              Lemons

4              Limes

1              Orange

1              qt. Simple Syrup


  1. Zest and juice the lemons, limes, and oranges. Put the zest and juice in a large mason jar or non-reactive container.
  2. Add the Citric Acid. Cover the acid, zest, and juice with water and seal the container. Leave in the refrigerator for 72 hours. Give the container a good shake once a day.
  3. Prepare Simple Syrup. Allow to Cool.
  4. In a pot, cover the Cinchona Bark with water. Boil rapidly for ten minutes. Allow to cool.
  5. Strain the zest from your non-reactive container, reserve the liquid. Strain the Cinchona Bark, reserve the liquid.
  6. Combine citrus liquid, Cinchona Bark liquid and simple syrup. Taste ¾ oz. of syrup with 8 oz. club soda. Adjust with sugar or citric acid to taste.

To add some seasonal flare, simply add herbs, fruit, or spices to the zest, juice, and acid mix. Be sure to mix everything at room temperature or below, cooked citrus notes are not favorable.