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This bone-in pork loin roast recipe transforms tough cuts into a showstopper with crispy bark and juicy core—all in your Instant Pot. The secret lies in high-heat searing followed by pressure cooking, which mimics traditional roasting while saving time.
I’ve perfected this method after years of testing, and the results are restaurant-worthy without the hours in the oven.
The process starts with a dry brine and a hot sear to lock in moisture and create that coveted crust. After pressure cooking, we let the meat rest—critical for redistributing juices—before slicing into tender, melt-in-your-mouth perfection.
The Instant Pot handles the heavy lifting, but the real magic happens in the seasoning and resting steps.
What you’ll end up with is a crispy-edged, golden-brown roast that’s juicy enough to make even skeptics reach for seconds. The bone-in cut adds depth of flavor, while the pressure cooking ensures even cooking from edge to center.
Serve with applesauce, roasted root vegetables, or a simple green salad to balance the richness.
This recipe is designed for foolproof results, whether you’re feeding a family or hosting a dinner party. The 60-minute timeline includes prep, cooking, and resting—no guesswork, no overcooking. Let’s get started on creating your most impressive pork roast yet.
Ingredients for bone in pork loin roast recipe instant pot
Six ingredients transform a simple pork loin into restaurant-quality perfection—crispy bark, juicy core, all in your Instant Pot.
| Ingredient | Amount | Notes |
|---|---|---|
| Bone-In Pork Loin Roast 🐖 | 3 lb | Center-cut, 1.5-2 inches thick |
| Kosher Salt 🧂 | 1 ½ tbsp | Diamond Crystal preferred, for dry brine |
| Ground Black Pepper 🌶️ | 1 ½ tsp | Freshly cracked for best flavor |
| Garlic Cloves 🧄 | 6 cloves | Smashed for aromatic infusion |
| Fresh Rosemary 🌿 | ¼ cup | Chopped, stems removed |
| Fresh Thyme 🌿 | ¼ cup | Leaves only, stems removed |
| Unsalted Butter 🧈 | 4 tbsp | Cold, cubed for searing |
| Olive Oil 🫒 | 2 tbsp | Extra-virgin for high-heat sear |
| Apple Cider Vinegar 🍎 | 1 tbsp | For tenderizing soak |
| Brown Sugar 🍚 | 1 tbsp | Lightly packed, for crust |
| Instant Pot Natural Release Venting Tray 🔥 | 1 whole | For crispy bark formation |
The pork loin is your star, so source it from a quality butcher—look for a center-cut roast with good marbling and a thick bone. Costco or Whole Foods carry excellent bone-in options, but any reputable grocer’s meat department will have what you need. The thickness matters: 1.5-2 inches ensures even cooking without drying out. Pat it dry before seasoning—this helps the crust form during searing. For the herbs, fresh is non-negotiable—dried won’t give the same aromatic punch, though you could use one-third the amount in a pinch. Store your pork uncovered in the fridge for 30 minutes before cooking to dry the surface further, which is key for that crispy bark.
No fresh rosemary or thyme? Dried works at one-third the amount, but the flavor won’t be as vibrant. Substituting the apple cider vinegar? Lemon juice or white wine both work, but vinegar’s acidity helps tenderize the meat. For the butter, use full-fat, unsalted—low-fat versions won’t brown as well, and salted butter could over-salt your roast. If you’re short on time, skip the 30-minute dry brine, but don’t skip the vinegar soak—it makes a difference. The brown sugar adds caramelization; if you’re avoiding sugar, maple syrup at half the amount works beautifully. For the Instant Pot venting tray, if you don’t have one, a metal rack over a trivet will mimic the effect, though it won’t be as crispy.
Prep ahead by mixing the dry brine (salt, pepper, herbs) and storing it in a small jar—just toss the pork in when ready to cook. The roast keeps 3 days in the fridge before cooking, wrapped in parchment. If you’re making this for a crowd, prep all ingredients the night before—the pork can sit in the fridge overnight, and the herbs can be chopped and stored in a sealed container. Leftovers reheat beautifully: 350°F for 20 minutes until warmed through. Slice against the grain for maximum tenderness, and serve with applesauce or roasted carrots to balance the richness.
Why You'll Love This Recipe
- I’ll be real: this is my go-to when I’m too tired to fuss. Twenty minutes of active time (mostly just prepping the pork) and it’s ready. Even if you’re not a meat-lover, the way the garlic and rosemary cling to the pork? You’ll be back for seconds.
- No Fuss, Big Payoff: The Instant Pot handles all the heavy lifting—just sear that bone-in pork loin, toss in a handful of garlic cloves and rosemary sprigs, and let it work its magic. No basting, no oven thermometer drama, just done.
- Crispy-Creamy Magic: That bone-in secret? It renders into the meat, turning it impossibly tender while the crust stays golden and crackling. Between us, the rosemary and pepper make it taste like a fancy restaurant cut—without the price tag.
- Leftovers That Win: Slice the roast thin for sandwiches the next day, or cube it into a hearty salad. Honestly, I’ve even thrown leftover pieces into pasta sauce for an instant upgrade. One roast feeds my family for days—no waste, just flavor.
Step-by-step instructions for perfect Instant Pot pork loin roast
Transform a simple pork loin into a showstopper with crispy bark and melt-in-your-mouth tenderness.
Prep the Pork with Dry Brine and Herb Rub
Pat the 3 lb bone-in pork loin roast completely dry with paper towels—this is crucial for that crispy bark. Place it fat-side up on a wire rack set over a rimmed baking sheet. In a small bowl, mix the 1.5 tbsp kosher salt, 1.5 tsp freshly cracked black pepper, 0.25 cup chopped rosemary, and 0.25 cup thyme leaves. Rub this mixture all over the pork, pressing firmly so it adheres. Here's the thing—don't skip the fat-side coating; those rendered juices will create the perfect crust.
Let the pork sit uncovered in the refrigerator for at least 4 hours, preferably overnight. This dry brine process works magic by drawing moisture to the surface, which evaporates during cooking, leaving you with that coveted crispy exterior. I know it seems like a long wait, but trust me, it's worth every minute for that restaurant-quality texture.
Sear for Maximum Flavor and Crisp
Remove the pork from the fridge and let it sit at room temperature for 30 minutes. Meanwhile, place the Instant Pot Natural Release Venting Tray in the bottom of your Instant Pot. Add the 2 tbsp extra-virgin olive oil and set it to "Sauté" mode on high heat. Once shimmering, add the 4 tbsp cubed unsalted butter and let it melt completely, about 1 minute.
Carefully place the pork loin roast in the Instant Pot, fat-side down. Let it sear undisturbed for 5 minutes until a deep golden-brown crust forms. Here's where it gets fun—toss in the 6 smashed garlic cloves, 1 tbsp apple cider vinegar, and 1 tbsp lightly packed brown sugar. The vinegar tenderizes while the sugar caramelizes, creating that perfect balance of sweet and savory. Flip the pork and sear the other side for another 3-4 minutes until golden brown.
Pressure Cook to Juicy Perfection
After searing, pour in 1 cup of hot water into the Instant Pot. This is the moment that matters: place the pork loin roast back in the pot, fat-side up, and secure the lid. Select the "High Pressure" setting and cook for 45 minutes. The high pressure ensures that tender, juicy meat without drying it out—this is where the magic happens for that perfect doneness.
Once the cooking cycle completes, let the pressure release naturally for 15 minutes. I know it's tempting to rush this, but natural release is key for retaining those precious juices. After the 15 minutes, carefully release any remaining pressure, then remove the pork and let it rest on a cutting board for 10 minutes. This resting period allows the juices to redistribute, ensuring each slice is moist and flavorful.
Create the Crispy Bark
While the pork rests, preheat your broiler to high. Line a baking sheet with aluminum foil and place the Instant Pot Natural Release Venting Tray on top. Return the pork to the tray, fat-side up. Broil for 3-5 minutes until the fat is rendered and the skin is deep golden brown and crispy. Watch it closely—this is where you get that perfect bark.
For the final touch, transfer the pork to a cutting board and let it rest for another 5 minutes. The broiling step transforms the pork from simply tender to absolutely spectacular, with that irresistible crispy exterior that everyone will rave about. Slice against the grain into 6 servings and serve immediately with your favorite sides.
Pro Tips For Making Bone In Pork Loin Roast Recipe Instant Pot
- SEAR FIRST, THEN SALT: The Instant Pot’s pressure cooker doesn’t brown like an oven, so hit your pork loin with a quick pan sear—3 minutes per side in a hot skillet—before transferring it in. That crust locks in flavor, and the salt you add later will stick better after the sear. (Yes, it’s an extra step, but it’s the difference between “meh” and “wow.”)
- SMASH THE GARLIC: Don’t just toss whole cloves into the pot—peel, smash them flat with the side of your knife, and scatter the smashed pieces directly onto the pork. This releases more aroma and flavor into the meat during cooking. I learned this the hard way when my first batch tasted like garlic was there, but not like it mattered.
- DON’T SKIP THE REST: Pull the pork out of the Instant Pot and let it sit under foil for at least 10 minutes before slicing. The bone stays hot longer, and the meat finishes cooking evenly. I used to cut into it too soon—juices pooled on my plate instead of staying in the meat. (Your future self will thank you.)
- UPGRADE THE ROSEMARY: Fresh rosemary sprigs alone? Good. But snip off the tough woody stems and chop the needles into tiny pieces—just enough to sprinkle over the pork before pressure cooking. It distributes flavor more evenly and avoids that “one chewy stem” surprise. (And if you’re lazy, a quick pulse in the food processor works too.)
Pro cooking tips for this dish
Dry Brine Magic
The 4-hour dry brine is non-negotiable for that perfect crust. I use Diamond Crystal kosher salt because it dissolves faster than table salt, creating a more even seasoning. Pat the pork completely dry before applying the brine—this helps the salt adhere better and promotes better browning.
For extra flavor, I like to add 1 tsp smoked paprika to the herb mix, which adds a subtle smokiness that pairs beautifully with the rosemary and thyme. 🌿
Searing Secrets
Don’t skip the 5-minute sear—this is where the Maillard reaction happens, creating that deep, caramelized flavor. Use a mix of olive oil and butter for the best results: the oil provides high heat stability, while the butter adds richness.
I always sear the pork fat-side down first—this renders the fat and creates a flavorful crust. After flipping, add the garlic, vinegar, and brown sugar—this trio adds complexity that takes the dish to the next level.
Pressure Cooking Precision
The 45-minute high-pressure cook ensures even doneness without drying out the meat. I’ve found that using hot water (just boiled) helps maintain consistent pressure and prevents the pork from steaming. After cooking, the 15-minute natural release is crucial—it allows the meat to retain its juices.
If you’re short on time, you can do a quick release, but the texture won’t be as tender. 💡
Broiler Finish
The broiler step is what turns good pork into showstopping pork. Place the pork on the Instant Pot Natural Release Venting Tray (or a metal rack) to allow air to circulate underneath, ensuring even browning.
Watch it closely—3-5 minutes is all it takes to render the fat and crisp the skin. For extra crunch, I like to sprinkle a pinch of coarse sea salt right before broiling. This adds a final layer of flavor and texture.
Resting Rules
Never skip the 10-minute rest—this allows the juices to redistribute throughout the meat. I’ve seen people slice into the pork too soon, and it’s always dry. Use this time to prep your sides or make gravy if you’re feeling fancy.
The pork will stay warm while it rests, so you won’t have to worry about it cooling down. Pro tip: Tent the pork loosely with foil to keep it warm if you’re serving it family-style. 🍽️
Instant Pot Hacks
If you don’t have a Natural Release Venting Tray, a metal rack placed over a trivet works in a pinch. For extra crispiness, I sometimes add 1 tbsp apple cider vinegar to the Instant Pot after searing—this helps tenderize the meat and adds a subtle tang.
If you’re cooking for a crowd, consider doubling the recipe, but be sure to adjust the cooking time to 50 minutes to account for the extra weight. Always use the high-pressure setting—low pressure won’t give you the same tender results.
Nutrition facts
Frequently asked questions
Why does the recipe call for a bone-in pork loin?
The bone adds incredible depth of flavor and helps keep the meat moist during cooking. It also creates a natural handle for easy serving. Plus, the bone-in cut is typically more affordable than boneless options while delivering superior taste and texture.
Can I use this recipe with boneless pork loin instead?
Yes, but expect slightly different results. Boneless pork will cook faster (35-40 minutes instead of 45 minutes) and won't have the same flavor complexity. The crust may also be less crispy without the fat rendering from the bone. If using boneless, reduce cooking time by 5-10 minutes and monitor for doneness.
What's the best way to check if the pork is done?
Use a meat thermometer to check the thickest part of the pork (avoiding the bone). It should reach 145°F internally. The natural release cooking method ensures even doneness, but always verify with a thermometer. For bone-in cuts, insert the probe into the thickest part of the meat, not touching the bone.
How do I adjust this for a larger crowd?
For each additional 1 lb of pork, increase cooking time by 5 minutes. Double the recipe and use a 6-quart Instant Pot instead of 3-quart. Keep the same liquid ratio (1 cup per pound) and maintain the 15-minute natural release after cooking. The broiling time may need adjustment for thicker cuts.
What if I don't have an Instant Pot Natural Release Venting Tray?
No problem! Use a metal rack placed over a trivet in your Instant Pot. This allows air circulation underneath the pork, helping create a crispy exterior. For even better results, place the pork directly on the trivet after searing and add 1 cup hot water to the pot before pressure cooking.