Roast Pork Loin with Onions and Glaze is a classic, elegant dish that’s perfect for family dinners, holiday meals, or special occasions. Tender, juicy pork loin is roasted to perfection and served with sweet caramelized onions and a flavorful glaze that enhances the meat’s natural richness.
This recipe balances savory and sweet notes, creating a dish that is as visually appealing as it is delicious.
Ingredients
For the Pork Loin
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3–4 pound boneless pork loin
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2 tablespoons olive oil
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2 teaspoons salt
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1 teaspoon black pepper
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1 teaspoon garlic powder
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1 teaspoon dried thyme
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1 teaspoon paprika
For the Onions and Glaze
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2 large onions, thinly sliced
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2 tablespoons butter
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1/4 cup brown sugar
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2 tablespoons apple cider vinegar
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1/2 cup chicken broth
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1 tablespoon Dijon mustard
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1 teaspoon soy sauce (optional)
Optional Garnish
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Fresh rosemary or thyme
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Lemon wedges
Instructions
1. Prepare the Pork Loin
Preheat your oven to 375°F (190°C).
Pat the pork loin dry with paper towels. Rub it with olive oil, salt, pepper, garlic powder, thyme, and paprika. Set aside.
2. Sear the Pork Loin (Optional)
For extra flavor, heat a skillet over medium-high heat and sear the pork loin for 2–3 minutes per side until browned. This step locks in juices and adds a caramelized crust.
3. Prepare the Glazed Onions
In a small saucepan, melt butter over medium heat. Add the sliced onions and sauté for 5–7 minutes until soft and translucent.
Stir in brown sugar, apple cider vinegar, chicken broth, Dijon mustard, and soy sauce if using. Simmer for 5 minutes until slightly thickened. Set aside.
4. Roast the Pork Loin
Place the pork loin on a roasting rack in a baking dish. Roast in the preheated oven for 50–70 minutes (about 20 minutes per pound) or until the internal temperature reaches 145°F (63°C).
Baste the pork occasionally with pan juices or glaze for extra flavor.
5. Rest the Meat
Remove the pork loin from the oven and tent it with foil. Let it rest for 10–15 minutes before slicing. Resting allows juices to redistribute for tender, moist meat.
6. Serve
Slice the pork loin and arrange it on a platter. Spoon the caramelized onions and glaze over the top. Garnish with fresh rosemary or thyme if desired.
Serve with roasted vegetables, mashed potatoes, or rice.
Tips for the Best Roast Pork Loin
Use a meat thermometer
This ensures the pork is cooked perfectly without drying out.
Rest the meat
Always allow the pork to rest before slicing for maximum juiciness.
Caramelize the onions slowly
Slow cooking brings out their natural sweetness and flavor.
Make extra glaze
Reserve some glaze for serving; it adds a glossy finish and extra flavor.
Variations
Honey Mustard Glaze
Replace brown sugar with honey for a sweeter, tangy glaze.
Apple Glaze
Add diced apples to the onions for a fruity twist.
Garlic Herb Roast
Add crushed garlic and fresh herbs like rosemary and thyme to the glaze and pork rub.
Spicy Glaze
Add a pinch of cayenne pepper or chili flakes for a subtle heat.
Storage and Reheating
Refrigeration:
Store leftover pork and onions in an airtight container for up to 4 days.
Reheating:
Reheat gently in the oven at 325°F (160°C) for 10–15 minutes, covering with foil to prevent drying.
Freezing:
Cooked pork slices freeze well for up to 2 months. Thaw overnight in the refrigerator before reheating.
Why You’ll Love This Recipe
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Juicy, tender pork loin every time
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Sweet and savory caramelized onions and glaze
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Perfect for family dinners, holidays, and special occasions
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Easy to prepare with minimal ingredients
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Pairs well with a variety of side dishes
Roast Pork Loin with Onions and Glaze is a deliciously elegant dish that balances savory pork with sweet, caramelized onions and a flavorful glaze. With a simple prep and easy roasting method, it’s ideal for creating a memorable meal with minimal effort while delivering maximum flavor.