Recipe

Garlic Herb Pork Sirloin Roast

Crisp on the outside, juicy in the middle, and finished with a fast pan sauce that tastes like you planned ahead.

By Matt Campbell

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4.8

A sliced pork sirloin roast on a cutting board with crisp browned edges, rosemary sprigs, and a small bowl of pan sauce on a warm kitchen counter

Pork sirloin roast is one of my favorite quiet overachievers. It is affordable, easy to season, and when you roast it the right way, you get those crisp browned edges with juicy slices that actually taste like pork, not like “something that needed more salt.”

This version goes big on garlic, herbs, and a little lemon to keep things bright. We start hot to build color, then finish at a gentler temperature so the center stays tender. The best part is the pan sauce: you whisk a few pantry staples into the drippings and suddenly your weeknight roast is giving Sunday dinner energy.

A rimmed sheet pan holding a pork sirloin roast with small bowls of salt, pepper, garlic, Dijon mustard, olive oil, rosemary, thyme, lemon, and chicken broth on a kitchen counter

Why It Works

Two-temperature roasting gives you browned, flavorful edges without drying out the center.
Dijon plus garlic acts like a quick marinade and helps the herbs stick, so every slice is seasoned.
Resting time matters because pork keeps cooking a bit and the juices redistribute instead of flooding your cutting board.
Fast pan sauce turns drippings into something you will want to spoon over everything, including potatoes and green beans.

Pairs Well With

Storage Tips

Refrigerate: Cool leftovers, then store sliced pork in an airtight container for 3 to 4 days. Spoon a little pan sauce over the slices before sealing to keep them extra juicy.

Freeze: Freeze tightly wrapped slices or chunks for up to 2 to 3 months for best quality. For best texture, thaw overnight in the fridge.

Reheat without drying it out: Warm slices in a covered skillet with a splash of broth or water over low heat, 3 to 5 minutes. Microwave works too, but keep it at 50 to 70% power and stop as soon as it is hot. For food safety, leftovers should reach 165°F.

Leftover ideas: Thin-slice for sandwiches with mustard and pickles, toss into fried rice, or pile onto a salad with apples and a sharp cheddar.

Common Questions

Is pork sirloin roast the same as pork loin roast?

Not exactly, and labeling can vary from store to store. Pork loin roast is usually a larger, very lean cut from the back. Pork sirloin roast is often from the sirloin end of the loin or closer to the hip, and it can have a bit more connective tissue and an irregular shape. Both can be great, but sirloin really benefits from careful temperature control and a good rest.

What temperature should I cook pork sirloin roast to?

For slices that stay juicy, aim for 145°F in the thickest part. USDA guidance for whole cuts is 145°F followed by a 3-minute rest. In this recipe, we rest 10 to 15 minutes, which covers that safety rest and helps keep the roast juicy.

My pork is a little pink. Is it done?

Yes, it can be. Pork cooked to 145°F and rested can still have a light blush in the center, and that is normal for a juicy roast.

Why did my pork roast turn out dry?

Usually one of three things: the roast was cooked past 145°F, it was sliced right away, or it did not have enough salt. Use a thermometer, rest it, and season generously. Those three fixes do a lot of heavy lifting.

Do I need to sear it first?

Not required. This recipe uses a hot oven start to brown the outside without an extra pan. If you love a hard sear, you can brown it in an oven-safe skillet first, then roast.

Can I cook this with vegetables in the pan?

Yes. Add chunks of onion, carrots, or baby potatoes around the roast. Just know they can soak up drippings, so you may need a touch more broth when making the sauce.

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

Rimmed baking sheet or roasting pan
Wire rack (optional but helps with airflow and browning)
Instant-read thermometer
Small bowl for the rub
Whisk
Small saucepan or skillet for pan sauce
Cutting board and sharp knife

I used to think “roast” automatically meant a big project and a sink full of dishes. Pork sirloin roast changed my mind. It is the kind of cut that lets you practice real kitchen skills, like seasoning with confidence and trusting a thermometer, without demanding you babysit it for hours. The first time I nailed the timing, I remember slicing in and getting that perfect blush of juicy pork, then realizing the pan sauce took less time than finding a clean serving spoon. It felt like cheating in the best way.