Inspired by Oxtail Jus for Prime Rib from The Food Lab. Make a bunch of this for Prime Rib and keep it frozen for other things.
In Dutch oven, heat oil and sear oxtail and remove from pot.
Add celery, onion, carrot and sauté until it starts to turn brown.
Add wine and deglaze.
Add chicken stock and put oxtails back in pot. Bring to a boil and simmer, cover and cook until the meat is very tender - about 3 - 3 ½ hours.
Remove oxtails and allow to cool enough to handle. Remove meat from bones and keep for something else.
Strain liquid and put in smaller saucepan.
Remove fat on surface.
When getting ready to serve prime rib, heat the liquid and simmer until reduced and thicker.
Season to taste with salt and pepper.
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