Ingredients

1 boneless center-cut pork loin roast (2 pounds)

Coarse salt and ground pepper

3 teaspoons Dijon mustard

1 1/2 tablespoons plain breadcrumbs

1 pound frozen pearl onions, thawed

1 tablespoon olive oil

Preparation

Preheat oven to 450 degrees. Rub pork with salt, pepper, and 2 teaspoons mustard. On a plate, season breadcrumbs with salt and pepper. Coat top and sides of roast with breadcrumbs, leaving ends uncoated.

In a 9-by-13-inch roasting pan, toss onions with the oil; season with salt and pepper. Place pork in center of pan; roast 15 minutes. Turn onions; cook 10 minutes. Add 1/4 cup water; stir onions to coat. Continue cooking until onions are caramelized, pork juices run clear, and an instant-read thermometer inserted into thickest part of meat registers 140 degrees, 10 to 15 minutes more. Remove pork and onions from pan; let meat rest 20 minutes before slicing.

While meat is resting, add 1/2 cup water and remaining teaspoon mustard to pan. Cook over medium heat, scraping up browned bits. Stir until sauce is fully blended, 3 to 5 minutes; serve with pork and onions.