Braised Oxtail

Preheat your oven to 300 F / 150 C. Dry the oxtails well with paper towels. This will help you get a nice brown color when you sear them.

In a heavy, cast-iron Dutch oven or brazier, heat the oil over high heat, then add the oxtails and sear them thoroughly, using a pair of tongs to turn them. When you've developed a nice brown crust on all sides, remove the oxtail from the pan and set aside.

Add the onions and garlic to pot and cook for 5 minutes or so, or until the onion is slightly translucent.

Add the wine and use a wooden spoon or heat-proof spatula to loosen all the bits from the bottom of the pan.

Now return the oxtails to the pot along with the stock, bay leaves, rosemary, peppercorns, and tomato paste. Heat on the stovetop until the liquid comes to a boil, then cover with a tight-fitting lid and transfer the whole thing to the oven.

Leave the oxtail in the oven for three hours. You don't need to touch it at all during this time, but you can use some of that time to prepare some creamy polenta or mashed potatoes.

After three hours, remove the pot from the oven and let the meat cool in the braising liquid while you make the sauce.

Ladle out around two cups of the braising liquid and pour it through a mesh strainer. Skim off any fat from the top.

Heat the butter in a separate saucepan, then gradually stir in the flour until paste forms. Heat for a few minutes, stirring until the paste (called a roux) is a light brown color.

Now whisk the hot liquid into the roux, a little at a time. Simmer the sauce for about 15 minutes, then strain it through a fine-mesh strainer and season to taste with kosher salt and freshly ground black pepper. Serve the oxtail over some polenta or mashed potatoes, and a generous portion of sauce.