Redolent of warm winter spices, this silky beef requires a bit of advance planning because you're essentially curing the meat—but it's very easy to do. (If you cut the marinating time to 1 day, the results will be good but not quite as silky or flavorful.) You can roast the beef up to 2 days ahead and serve it warm or at room temperature, with crusty rolls for making little sandwiches if you like. It's also very good with a spicy-sweet chutney.
2 tablespoons black peppercorns (or a mix of black and green peppercorns)
6 tablespoons packed dark brown sugar
2 tablespoons plus 2 tsp. coarse kosher salt
1 1/2 teaspoons ground ginger
1 1/2 teaspoons ground allspice
1 1/2 teaspoons ground nutmeg
1 1/2 teaspoons ground coriander
1 1/2 teaspoons ground cardamom
3/4 teaspoon ground cloves
4 garlic cloves, coarsely crushed into slivers
1 whole beef tenderloin (about 5 lbs.), tied as a roast (see Notes)
2 tablespoons vegetable oil, divided
How to Make It
Grind peppercorns in an electric spice grinder (or clean coffee grinder) to a medium grind. In a small bowl, combine pepper, brown sugar, salt, ginger, allspice, nutmeg, coriander, cardamom, and cloves; whisk to combine. Rub meat sparingly with crushed garlic slivers, then rub all over with spice mixture.
Cut tenderloin crosswise in half. Wrap each half very tightly with several layers of plastic wrap (so that it looks swaddled), put in a rimmed pan, and refrigerate 4 days.
Preheat oven to 400°. Heat 1 tbsp. oil in a large frying pan (not nonstick) over high heat. Add 1 piece of meat and sear until well browned on all sides, 7 to 10 minutes. Transfer to a rimmed baking pan and repeat with remaining oil and beef. Transfer baking pan to oven and cook meat until an instant-read thermometer inserted in thickest part registers 135°, 20 to 30 minutes. (Halves may not cook at the same rate; after meat has been in the oven 20 minutes, begin taking temperature of both pieces of meat every 5 minutes.) Transfer to a carving board, tent with foil, and let rest 15 minutes. Remove kitchen twine.
Cut meat into very thin slices (less than 1/4 in., if possible) and serve warm or at room temperature, with crusty rolls and chutney if you like.
Note: Nutritional analysis is per 2-slice serving.
If you have whole spices instead of already ground, grind them along with the peppercorns in the amounts called for below. Many butchers will trim the tenderloin of excess fat and tie it as a roast for you, but you can also buy untrimmed, untied loins (they're usually cheaper) and do it yourself. Once you've trimmed off the fat with a sharp knife, tie the roast at 2-in. intervals with separate pieces of kitchen twine to give it an even shape as it cooks.