Heat orange juice in a saucepan with zest.

Add raisins, cook one more minute.

Stream in corn starch slurry a bit at a time while whisking over medium low-medium heat. Add half at a time and adjust to desired consistency.

Consistency should be pourable. Will thicken further as it cools...serve warm with Easter ham. Also goes well with other meats, but this is our traditional ham accompaniment.