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Festive, juicy, full of flavor, and easy to prepare—this Rosemary Garlic Oven Roasted Pork Loin is an ideal main course for holiday dinners, especially Christmas. The marinade combines fresh rosemary, garlic, olive oil and a secret brightener: orange zest. The citrus zest adds a fresh lift without making the meat sweet, balancing the richness of the pork and enhancing every bite. Best of all, the recipe is straightforward and makes a tender, flavorful roast that’s sure to please a crowd.
About the Recipe
This pork loin recipe is a no-fuss option for a stress-free holiday meal. It uses minimal, readily available ingredients and can be prepared ahead of time so the actual day of serving is easy. The technique—marinating in a rosemary-garlic-orange mixture and then roasting—comes from a family recipe and reliably produces juicy, well-seasoned meat that pairs well with many sides.
Rosemary and garlic are a classic pairing that appeals to many palates. The orange zest brightens the flavor profile, cutting through the pork’s richness and giving a subtle, aromatic citrus note. This simplicity makes the roast versatile—serve it with traditional holiday sides or simpler accompaniments for a weeknight dinner that still feels special.
Why You’ll Love This Roasted Pork Loin
- Ideal for holiday meals and family gatherings.
- Juicy, flavorful, and aromatic.
- Can be made ahead—marinate and refrigerate for deep flavor.
- Simple seasoning complements many side dishes.
- Consistently a crowd-pleaser.
Ingredients
Full ingredient amounts and complete instructions are provided in the recipe card below.
- Fresh rosemary leaves
- Garlic cloves
- Orange zest
- Olive oil
- Salt
- Black pepper
- Pork loin (3–4 pounds)
How to Make This Roasted Pork Tenderloin
Step 1: Make the marinade
In a blender or food processor, combine the rosemary, garlic, orange zest, olive oil, salt and pepper. Purée until smooth to create a fragrant, well-emulsified marinade.
Step 2: Marinate the pork
Coat the pork loin thoroughly on all sides with the marinade. Place the coated pork in an airtight bag or container, remove as much air as possible, and refrigerate. For best flavor, marinate for 2–3 days to allow the rosemary and garlic to penetrate the meat.
Step 3: Roast
When you are ready to cook, preheat the oven to 375°F (190°C). Remove the pork from the refrigerator and let it come closer to room temperature while the oven heats. Place the loin on a broiler pan or a roasting rack with the fat side up. Roast for about an hour, depending on the size of the loin and desired doneness. Use an instant-read thermometer to check doneness—see temperature guidelines below. Allow the pork to rest for at least 10 minutes before slicing to let the juices redistribute.
Pork Cooking Temperatures
For juicy, safely cooked pork, remove the roast from the oven when the internal temperature reaches 145°F (63°C). The roast will continue to warm slightly while resting. If you prefer pork more well done, aim for 150–155°F.
What to Serve With Roasted Pork Loin
This roast complements a wide range of sides. Consider mashed or roasted potatoes, a creamy mac and cheese, buttery popovers, sautéed vegetables, stuffing, cornbread dressing, crusty bread, or a tart cranberry-orange sauce. The herb-citrus profile pairs especially well with earthy or slightly sweet sides.
Storage and Leftovers
Store leftovers in an airtight container in the refrigerator for 2–3 days. Leftover pork is versatile: slice and serve cold on salads or sandwiches, dice and add to pasta or baked dishes, or toss with barbecue sauce for sandwiches. The mild rosemary-garlic flavor adapts well to many preparations.
If you plan to serve this for a holiday, prepare the marinade and start the marinating process a day or two ahead to maximize flavor. Use a reliable kitchen thermometer and allow the roast to rest before carving for the best texture and juiciness.
We hope you enjoy this Rosemary Garlic Oven Roasted Pork Loin. If you make it, please leave a comment and share your experience—feedback helps others and makes the recipe even better over time.
Rosemary Garlic Oven Roasted Pork Loin
A fragrant, juicy pork loin marinated in rosemary, garlic and orange zest, then oven-roasted to tender perfection.
Ingredients
- ½ cup fresh rosemary leaves (about 1 ounce)
- 14–16 garlic cloves, peeled
- 1 tablespoon orange zest
- ¾ cup olive oil
- 1 tablespoon salt
- 1½ teaspoons ground black pepper
- 3–4 pound pork loin
Instructions
- Combine rosemary, garlic, orange zest, olive oil, salt and pepper in a blender or food processor and purée until smooth.
- Coat the pork loin on all sides with the marinade.
- Seal the pork in an airtight bag or container, remove excess air, and refrigerate for 2–3 days to marinate.
- When ready to cook, preheat oven to 375°F (190°C). Remove the pork from the refrigerator and let it sit briefly while the oven heats.
- Place the loin on a broiler pan or roasting rack, fat side up. Roast for about an hour, adjusting time for the size of the meat. Use an instant-read thermometer to check for 145°F (63°C) for medium-rare to medium.
- Let the roast rest at least 10 minutes before slicing to retain juices. Slice and serve.
Notes & Tips
- Start the recipe a few days ahead to allow the flavors to infuse fully.
- 1/2 cup of rosemary leaves is roughly 1 ounce.
- Cooking times vary by weight; always confirm doneness with a thermometer.
- Let the pork rest for 10 minutes before carving to ensure juiciness.
Suggested Tools
- Blender or food processor
- Vacuum sealer or airtight bags/containers for marinating
- Instant-read kitchen thermometer
- Roasting pan or broiler pan with rack
– Still Hungry? –
Try other comforting recipes to round out your meal, such as hearty soups, savory sides, or breads. Enjoy planning a menu that highlights this roast.