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Close-up of Grilled French Onion Pork Burgers on a Ninja Woodfire Outdoor Grill on a plate.

French Onion Pork Burgers on a Ninja Woodfire Outdoor Grill

Chef Jenn
Super delicious! Do your burgers differently and try these French Onion Pork Burgers! With melty cheese and oodles of onions, they're amazing!
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Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Course Main Course
Cuisine American
Servings 6 burgers
Calories 598 kcal

Ingredients
  

  • 4 cups sliced onions sweet onion like Vidalia or Spanish onion
  • 2 tablespoons butter
  • fresh thyme
  • 1 tablespoon balsamic vinegar
  • 1.5 pounds lean ground pork
  • 1/4 cup breadcrumbs
  • 1 egg lightly mixed
  • 2 cloves garlic finely minced
  • 2 tablespoons dried onion flakes
  • ½ teaspoon onion powder
  • 1 teaspoon garlic salt
  • freshly ground black pepper
  • 4 ounces  gruyere cheese shredded
  • 2 ounces mozzarella cheese shredded
  • 6 bakery fresh buns
  • lettuce
  • mayonnaise

Instructions
 

  • Combine the ground pork, bread crumbs, egg, garlic, dried onion flakes, onion powder, garlic salt, and freshly ground black pepper in a large bowl. Mix until just combined—do not overmix.
  • Form the mixture into 6 even patties. Pop the patties into the freezer while your onions are cooking.
  • Preheat your Ninja Woodfire Outdoor Grill to medium and add the onions, thyme sprigs and butter to the griddle plate. Immediately turn the heat down to low and cook the onions with the lid open, stirring often, for 15-20 minutes or until they are caramelized and deep brown.
  • Add the balsamic vinegar to the onions and season them with salt and pepper. Remove the onions from the Ninja and set them aside.
  • Add the grill plate to the Ninja and turn the heat to high. When the Ninja is ready, add the pork patties to the grill and let them sear for about 2 minutes with the lid open. Reduce the heat to medium and cook for 5-6 minutes then flip, close the lid, and cook an additional 4-5 minutes or until they reach 165-F with a digital meat thermometer.
  • Top each patty with a generous amount of caramelized onions and a mix of gruyere and mozzarella cheeses during the last minute of grilling. Close the lid so the cheese melts.
  • Toast the buns on the grill plate for a light crunch.
  • Assemble the burgers on the toasted buns with lettuce, a dollop of mayonnaise, and the cheesy onion-topped patty.

Notes

Chef Jenn's Tips

  • Ensure your onions are thinly sliced for quicker, even caramelization. If you use sweet onions, then no extra sugar is needed.
  • Avoid pressing down on the patties while grilling to keep all those delicious juices inside.
  • For an added touch of flavor, brush the buns with a little garlic butter before toasting.
  • If you like a bit more herb flavor, sprinkle some additional thyme over the patties before they hit the grill.

Nutrition

Serving: 1burgerCalories: 598kcalCarbohydrates: 33gProtein: 33gFat: 37gSaturated Fat: 16gPolyunsaturated Fat: 3gMonounsaturated Fat: 14gTrans Fat: 0.2gCholesterol: 112mgSodium: 1065mgPotassium: 566mgFiber: 2gSugar: 10gVitamin A: 338IUVitamin C: 8mgCalcium: 379mgIron: 3mg

A Note on Nutritional Information

Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed.

Keyword ninja woodfire grill
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