Blackberry Acid

Directions

1. 1
   Put berries in a heat-resistant, nonreactive container.
2. 2
   Bring water to a boil in a large saucepan over medium heat.
3. 3
   Stir in tartaric acid, and pour mixture over berries.
4. 4
   Allow to cool.
5. 5
   Cover, and let rest overnight.
6. 6
   Strain berries, pressing only very gently, and discard berries.
7. 7
   Pour liquid into a saucepan, and add sugar.
8. 8
   Heat and stir over very low heat until sugar is dissolved.
9. 9
   Remove from heat, and cool acid.
10. 10
    Store in refrigerator for 1 week before using.
11. 11
    To serve, pour 2 ounces or more of blackberry acid over crushed ice in a glass, and fill with still or sparkling water.