My grandmother never wrote down her pork roast recipe, but I’ve decoded her one-pot philosophy for modern kitchens. This method captures all the flavor without the fuss.
Using an Instant Pot, the pork loin cooks alongside vegetables, infusing everything with herbaceous depth. The result is a tender roast with perfectly cooked sides—no extra pans, no stress.
This approach respects tradition while embracing convenience. The herbs and vegetables create a one-pot meal that’s rich, aromatic, and ready in under an hour.
It’s proof that comfort food doesn’t need to be complicated to be unforgettable.
Ingredients for Instant Pot Recipe for Pork Loin Roast with Vegetables
Tender pork loin and hearty vegetables cook together in one pot for a meal rich with herbaceous depth.
| Ingredient | Amount | Notes |
|---|---|---|
| Pork Loin Roast 🥩 | 2 lb | Boneless, trimmed of excess fat |
| Yukon Gold Potatoes 🥔 | 1 ½ lb | Cut into 2-inch chunks |
| Carrots 🥕 | 4 whole | Peeled, cut into 2-inch pieces |
| Yellow Onion 🧅 | 1 whole | Cut into 8 wedges |
| Fresh Rosemary 🌿 | 2 tbsp | Chopped, stems discarded |
| Fresh Thyme 🍃 | 2 tbsp | Leaves stripped from stems |
| Garlic Cloves 🧄 | 6 cloves | Smashed, peeled |
| Chicken Broth 💧 | 1 cup | Low-sodium preferred |
| Olive Oil 🫒 | 2 tbsp | Extra-virgin for depth |
| Dijon Mustard 🟡 | 1 tbsp | Smooth, not grainy |
| Kosher Salt 🧂 | 1 ½ tsp | Diamond Crystal preferred |
| Black Pepper 🌶️ | 1 tsp | Freshly ground for best flavor |
| Apple Cider Vinegar 🍏 | 1 tbsp | Balances richness of pork |
The pork loin should be boneless with visible marbling for optimal tenderness. Costco or Whole Foods typically carry high-quality cuts. For the vegetables, Yukon Gold potatoes hold their shape best—avoid waxy red potatoes. Fresh herbs are non-negotiable here; dried won’t deliver the same aromatic punch. Look for bright green, fragrant sprigs at the market.
No pork loin? Pork shoulder works but requires slightly longer cooking. Substitute beef broth for chicken broth if preferred. Sweet potatoes can replace Yukon Golds (adjust cook time by 5 minutes). Out of fresh thyme? Use half the amount of dried. The apple cider vinegar can be swapped for white wine vinegar without issue.
This meal keeps beautifully for 4-5 days in the fridge. Reheat gently to avoid drying the pork. Freeze portions for up to 3 months—thaw overnight before reheating. The flavors deepen over time, making leftovers even more delicious.
Why You’ll Love This Recipe
- Set and Forget: The instant pot does all the work while I sip my coffee—just toss in the pork, potatoes, and carrots, then walk away.
- Rosemary Magic: That fresh rosemary with the caramelized onions? Honestly, it’s the reason I make this every other week.
- Sunday Dinner, Tuesday Leftovers: I serve it to guests, then pack the extras for lunch—tastes even better the next day.
- Budget Hero: One affordable pork loin feeds my family for two meals, and the veggies stretch it even further.
Step-by-Step Instructions for Instant Pot Pork Loin Roast With Vegetables
This one-pot method delivers tender pork loin with perfectly cooked vegetables every time.
Step 1: Sear and Season the Pork Loin
Set your Instant Pot to Sauté mode and add the 2 tbsp olive oil. When the oil shimmers, pat the 2 lb pork loin roast dry and season it generously with the 1.5 tsp kosher salt and 1 tsp black pepper.
Sear the pork loin on all sides for 3-4 minutes per side until deeply browned. This step builds a flavorful fond that will enhance the final dish. Remove the pork and set it aside on a plate.
Step 2: Sauté Aromatics and Deglaze
In the same pot, add the 1 whole yellow onion, 4 whole carrots, and 6 cloves garlic cloves. Sauté for 2-3 minutes until the onion softens slightly and the garlic becomes fragrant.
Add the 2 tbsp fresh rosemary and 2 tbsp fresh thyme, stirring for 30 seconds to release their oils. Pour in the 1 tbsp apple cider vinegar to deglaze the pot, scraping up all the browned bits with a wooden spoon.
Step 3: Pressure Cook with Vegetables
Place the 1.5 lb Yukon Gold potatoes in the pot, arranging them around the pork loin. In a small bowl, whisk together the 1 cup chicken broth and 1 tbsp Dijon mustard, then pour this mixture over the pork and vegetables.
Secure the lid and set the Instant Pot to High Pressure for 20 minutes. The cook time ensures the pork reaches 145°F internally while the vegetables become fork-tender.
Step 4: Rest and Serve
Allow the pressure to release naturally for 10 minutes, then quick-release any remaining pressure. Transfer the pork loin to a cutting board and let it rest for 5-10 minutes before slicing—this keeps the juices locked in.
Serve the sliced pork with the vegetables and some of the cooking liquid spooned over the top. The herbs will have infused every bite with robust, aromatic flavor.
Pro Tips For Making Instant Pot Recipe For Pork Loin Roast With Vegetables
- Sear the Pork First: I learned this the hard way—browning the pork loin in the Instant Pot before pressure cooking adds a depth of flavor that skipping this step just can’t match. Use the sauté function with a little oil for 3-4 minutes per side.
- Cut Veggies Evenly: Sounds obvious, but chopping the potatoes and carrots into uniform 2-inch chunks guarantees they cook at the same rate. I used to end up with mushy carrots and undercooked potatoes until I started doing this.
- Use a Trivet: After burning a few roasts, I finally figured out that elevating the pork on the trivet keeps it out of the liquid, so it doesn’t steam into a sad, soggy mess. The veggies go right under it to soak up all those juices.
- Add Rosemary Late: Fresh rosemary can turn bitter if cooked too long under pressure. I toss in the sprigs during the last 5 minutes of cooking or just let them steam with the veggies—this keeps the flavor bright and aromatic.
Health Benefits of This Recipe
Lean Protein Power
A 2 lb pork loin roast packs about 100 grams of protein in this meal, supporting muscle maintenance and repair. Protein keeps you full longer, which I’ve noticed helps with portion control at dinner. 💪
Vitamin-Rich Vegetables
The Yukon Gold potatoes and carrots provide vitamin A, vitamin C, and potassium, supporting immune function and heart health. One serving covers a significant portion of your daily vitamin needs.
Herb Health Boost
Rosemary and thyme aren’t just flavorful—they contain antioxidants that combat inflammation. I love how these herbs turn a simple meal into a health-conscious choice without extra effort.
Low-Fat Cooking
Using an Instant Pot means you need minimal oil—just 2 tbsp olive oil—to achieve rich flavor. This method reduces added fats while keeping the pork tender and the vegetables perfectly cooked.
Balanced Nutrition
This one-pot meal combines lean protein, complex carbs, and fiber-rich vegetables in a single dish. It’s a complete, balanced option that aligns with my grandmother’s philosophy of simple, wholesome cooking. 💛
Bone Health Support
The apple cider vinegar adds a subtle tang while potentially aiding calcium absorption. Combined with the minerals in the vegetables, this dish supports strong bones and overall well-being.
Nutrition Facts
Frequently Asked Questions
Can I use frozen pork loin?
Yes, but thaw it completely first for even cooking. Cooking from frozen can lead to uneven doneness and may require 50% more time. Always check internal temp reaches 145°F.
What if my pork is tough?
This usually means it was overcooked. Stick to the 20-minute pressure cook time and let it rest 5-10 minutes before slicing. The rest period is crucial for juiciness.
Can I add other vegetables?
Try parsnips or brussels sprouts, but cut them to similar sizes. Denser veggies may need 5 extra minutes of cook time.
Do I need to brown the pork first?
Yes, searing for 3-4 minutes per side builds flavor. Skip this and you’ll miss the deep, caramelized crust that makes this dish special.
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