You can use this with anything that needs a slightly sweet, fruity, and citrusy pop of flavor. I served this with braised pork belly.
1 C Riesling wine
1 C unsweetened blueberry juice
2 cardamom pod, or 1/4 teaspoon ground cardamom
2 kaffir lime leaves, or the zest of 2 limes
juice from 1 lime
sugar to taste
salt to taste
2 small saucepans
Put the Riesling in a small saucepan. Heat over medium-high heat until it reduces to 1/4 to 1/3 of a cup.
Remove from the heat
Thinly slice the kaffir lime leaves and stir the ribbons into the Riesling reduction, or add the lime zest
Add a pinch of salt, stir, and let sit.
Put the blueberry juice and cardamom pod (if using, ground cardamom later would be added later) into a second sauce pan. Heat over medium-high heat until it reduces by about 1/2.
Add the Riesling reduction to the blueberry reduction. Add the ground cardamom now, if you're not using a whole pod.
Reduce the entire mixture to about 1/2 a cup
Stir in sugar to taste. How much you need depends on how sweet the Riesling and blueberry juice was to begin with.
Add salt to taste
Continue cooking until sugar and salt are fully dissolved, about 1 minute
Allow to completely cool, then strain into a storage container. Stir in the lime juice.