Balsamic Pork Loin Marinade for Grilling or Roasting

This is a reliable, all-purpose balsamic marinade for pork tenderloin and boneless pork loin with an Italian-inspired flavor profile. It blends sweet-tart balsamic vinegar with whole grain or Dijon mustard, fresh garlic, honey, and olive oil, plus fresh rosemary or thyme. It works beautifully for grilling in warm weather and for roasting or baking during colder months, and it’s naturally gluten-free.

I turn to this marinade whenever I want a quick, flavorful pork dinner that still feels a little special. It’s fast to mix—just whisk the ingredients together—and it makes the pork juicy and well seasoned. The honey and balsamic add gentle sweetness without becoming cloying, and the garlic and mustard contribute savory depth and texture.

If you prefer a different regional profile, you can swap flavors: for an Asian twist try a maple-ginger or teriyaki-style marinade instead. But for straightforward, bright Italian flavors, balsamic and rosemary (or thyme) are hard to beat.

This marinade contains a modest amount of sugar from honey and the natural sweetness of balsamic vinegar, but it’s far lighter than many typical BBQ sauces. Using whole grain mustard instead of smooth Dijon adds little beads of texture that I find especially nice on pork.

Herbs are flexible here: rosemary pairs classically with pork, but thyme is a great alternative if you prefer a subtler, earthier note. Use fresh when possible, or 1 teaspoon dried if that’s what you have.

Balsamic Marinade for Pork Ingredients

Using the balsamic marinade for boneless pork loin versus tenderloin

The balsamic-rosemary combination suits any pork cut—tenderloin, boneless pork loin, or chops. The main difference is cooking method and time. Pork tenderloin is a thinner, leaner cut that benefits from higher heat and a shorter cook (about 20 minutes in the oven) to keep it tender. Boneless pork loin is larger and benefits from slower, lower-temperature roasting or indirect, lower-heat grilling to prevent the garlic from charring while allowing the interior to cook evenly.

Below you’ll find both baking and grilling instructions for each cut, along with tips for resting and slicing for the best texture and presentation.

How to use this pork loin marinade for baking or roasting

This marinade is straightforward to use in the oven for any pork cut. Remove excess marinade before cooking and reserve some to brush or reduce into a glaze.

For pork tenderloin: Preheat the oven to 450°F. Remove the pork from the marinade and place it on a parchment-lined baking sheet. Roast for about 20 minutes, until the outside is nicely browned and an instant-read thermometer reaches your desired doneness.

For boneless pork loin: Preheat the oven to 400°F. Roast the loin for 15 minutes, then reduce the oven to 300°F and continue roasting for 40–50 minutes, or until the internal temperature reaches 135°F for a slightly pink, juicy center. Cook longer if you prefer well-done pork. After cooking, transfer the meat to a cutting board and rest for at least 10 minutes before slicing on a diagonal.

Step by Step

How to use this pork loin marinade for grilling

Preheat a gas or charcoal grill or heat a large indoor grill pan to medium-high. If the pan is small, cut the tenderloin in half lengthwise so pieces fit evenly.

For pork tenderloin: Grill covered over medium heat for 15–20 minutes, turning every 3–5 minutes and brushing with reserved marinade, until the meat reaches your preferred doneness.

For boneless pork loin: Grill over medium-low to indirect heat (around 350°F) covered for roughly 45–60 minutes, turning and brushing periodically, until the interior reaches the desired temperature.

Always rest the meat for at least 10 minutes before slicing to retain juices, then slice on a diagonal for attractive presentation.

What else can you do with this pork loin marinade?

This balsamic marinade also works well on chicken and makes a great glaze for grilled vegetables. Try brushing it on radicchio, zucchini, portobello mushrooms, eggplant, or red onions before grilling or roasting. Roasted balsamic onions caramelize beautifully and are an excellent side to serve with the pork.

Read on for the full recipe and simple instructions to make this easy balsamic pork loin marinade at home.

With health and hedonism,

Phoebe

Easy Balsamic Pork Loin Marinade (for Grilling or Roasting!)

Ingredients

• 1/4 cup balsamic vinegar
• 2 tablespoons whole grain mustard (or Dijon)
• 2 tablespoons olive oil
• 1 tablespoon honey
• 1 tablespoon chopped fresh rosemary or thyme (or 1 tsp dried)
• 2 minced garlic cloves
• 1/2 teaspoon salt
• 2 pounds pork tenderloin or boneless pork loin

Instructions

1. In a small bowl or liquid measuring cup, whisk together balsamic vinegar, mustard, olive oil, honey, rosemary or thyme, minced garlic, and salt until combined.
2. If not using immediately, store the marinade in the refrigerator for up to 2 weeks.
3. Place the pork in a large resealable bag or container and pour the marinade over it. Let sit at room temperature for 1 hour, or refrigerate for 8 hours to overnight for maximum flavor.
4. When ready to cook, remove excess marinade from the meat. Reserve some marinade to brush during cooking or to reduce into a glaze (see step 6).
5. Follow the baking or grilling instructions earlier in this post for timing and temperature specific to tenderloin or pork loin. Always rest the cooked pork on a cutting board for at least 10 minutes before slicing.
6. To make a glaze, simmer the reserved marinade in a small saucepan for several minutes until thickened and glossy. Drizzle over the sliced pork just before serving.

If you make this, tag @phoebelapine and #feedmephoebe – I’d love to see it!