Garlic Herb Roast Pork with Baby Potatoes in One Pan

A whole pork loin roasts in a garlicky rosemary crust while baby potatoes crisp in the drippings below, and everything arrives at the table on one platter. The thermometer does the worrying for you: pull the roast at 145°F and the meat stays blushing and juicy instead of gray and dry. One pan in, one pan out, and a Sunday-worthy dinner with barely any dishes to wash.

Garlic herb roast pork with baby potatoes is the kind of main that looks far more labor-intensive than it is. The work is mostly hands-off: rub a paste of olive oil, minced garlic, rosemary, and thyme over a boneless pork loin roast, halve a bowl of baby potatoes, and let a hot oven do the rest.

The potatoes roast in the same metal pan as the meat, soaking up the herb-flavored drippings while their cut sides turn deep gold.

Because pork loin is lean, the recipe leans on two safeguards: a dry, well-seasoned surface for a real crust, and an instant-read thermometer that pulls the roast at exactly 145°F (63°C). A short rest follows, then thick slices carved across the grain, plated right next to the potatoes just as they appear in the video.

Ingredients

Why this recipe works

The method works because it treats lean pork loin the way it needs to be treated: high, dry heat, a seasoned surface, and a precise finish.

Patting the roast dry and salting it first gives the garlic herb paste something to grip, so it bakes into a crust rather than sliding off. Roasting at 425°F (220°C) browns that crust quickly, which means the interior never has time to overcook before the outside turns golden.

Roasting the potatoes in the same pan is not just a cleanup trick. The pork releases fat and herb-flavored juices as it cooks, and the potatoes sit in that flavor while their cut sides press against the hot metal, crisping where it counts.

Pulling the roast at 145°F and letting it rest keeps the muscle fibers from releasing their juice too early, so each slice stays moist from the first cut to the last.

Notes and substitutions

Choose a boneless pork loin roast around 3 lb, with a thin layer of fat on top if possible; that fat bastes the meat as it renders. Baby potatoes should be firm and similar in size so they halve evenly and finish at the same time. Fresh rosemary and thyme matter here because the herbs roast in hot oil for an hour, and dried herbs can turn dusty at that temperature.

A metal roasting pan is the right tool; it conducts heat well and lets the potatoes brown against the surface. An instant-read thermometer is the one piece of equipment that should not be skipped, since pork loin punishes guesswork. If fresh herbs are hard to find, dried herbs work at a lower quantity, and pork tenderloin can replace the loin with a shorter roasting time.

• boneless pork loin roast: Pork tenderloin works too, but it is smaller and leaner: use two 1 to 1 1/4 lb tenderloins and start checking the temperature after about 25 minutes of roasting.
• fresh rosemary and thyme: Use 1 teaspoon each of dried rosemary and dried thyme, rubbed between your fingers before mixing so they release their flavor into the oil.
• baby potatoes: Any waxy potato cut into 1 1/2-inch chunks roasts well; red or gold potatoes hold their shape better than russets.
• olive oil: Avocado oil or melted unsalted butter can stand in; butter browns faster, so check the potatoes a few minutes early.

Equipment

• metal roasting pan
• carving board
• sharp carving knife
• instant-read thermometer
• tongs
• large mixing bowl