Blueberry Shrub

We had frozen blueberries, needed to make a cocktail to take to someone's house, and in a panic tried to make a blueberry syrup. The result was pedestrian and unbalanced, something akin to cobbler. But my hosts were, or pretended to be, delighted. They called it a shrub.

So I made a shrub the next time around.

3 cups of frozen blueberries
2 cups of apple cider vinegar
1/2 tsp. (scant) chile flakes
3 cinnamon sticks
2 bay leaves

First up, take the blueberries to a food processor with enough apple cider vinegar to keep it moving. Then drop it into a saucepan along with everything else, and bring to a simmer. Cover and cook for one hour, with the occasional stir.

Take it off heat, put it in a water bath to cool it down. Remove the cinnamon sticks and bay leaves.

Put it in the Vitamix.

This part is tricky. The heat from the shrub will make blending it hard. You have to do it with the top off, and you can't turn it up too much. I would really have preferred to put it on high for ten minutes, but we ended up on a middle speed. Oh well.

Strain it back into the saucepan. Simmer and reduce. It took me at least an hour to do this, and in the end I reduced it by 1/3. This gives you, almost a glaze.

Cocktails to try with a shrub:

• Shrub and bourbon. Top with soda water.
• Gin and Shrub. Top with soda water.
• Blueberry soda (just soda water!)
• Tom Collins, just substitute the shrub. 

Those are remarkably uninspired...