doctor’s orders. [caramelized onion, jarlsberg & arugula burger]

April 28th, 2021 by | comments

A burger a day keeps the doctor away, right? As I’m sure I’ve already expressed, I’m a sucker for a smashburger, but I decided to switch it up a bit. This gourmet burger of sorts is stacked with arugula, caramelized onions, jarlsberg cheese, homemade mustard aioli and United Harvest organic grass-fed, grass-finished ground beef. The beef is so juicy and flavorful and really takes this burger to the next level. These were gobbled up in no time!

caramelized onion, jarlsberg & arugula burger
Prep time: 
Cook time: 
Total time: 
Serves: 4
  • Caramelized onion recipe:
  • 2 medium yellow onions, cut into thin slices
  • 2 Tbsp. unsalted butter
  • 1 Tbsp. canola oil
  • 1 tsp. Kosher salt
  • Mustard aioli recipe:
  • ½ cup mayonnaise
  • 3 Tbsp. Dijon mustard
  • ½ tsp. honey
  • ¼ tsp. garlic powder
  • ½ tsp. Kosher salt
  • ½ tsp. black pepper
  • Burger recipe:
  • 1 lb. United Harvest Organic Grass-Fed Ground Beef, divided into four 4 oz. patties (roughly 1-inch thick)
  • 1 Tbsp. Worcestershire
  • ¼ tsp. garlic powder
  • ½ tsp. Kosher salt, plus additional for seasoning
  • ¼ tsp. black pepper
  • Jarlsberg cheese, thinly sliced
  • Arugula, for garnish
  • 4 hamburger buns
  1. For the caramelized onions:
  2. Warm a large cast iron skillet over medium-high heat, then add olive oil and butter. Once melted, add onion slices and 1 tsp. salt. Stir the onions and spread out evenly over the pan.
  3. Reduce the heat to low, place a lid on the pan and cook the onions, checking on them and stirring every 10-15 minutes, for roughly 45 minutes to 1 hour.
  4. Once onions are golden and starting to smell caramelized, remove from the heat.
  5. For the mustard aioli:
  6. While the onions are cooking, whisk together the mayonnaise, Dijon mustard, honey, garlic powder, salt and pepper in a small bowl. Cover with plastic wrap and place in the refrigerator until ready to use.
  7. For the burgers:
  8. In a medium bowl, mix together the ground beef, Worcestershire, garlic powder, salt and pepper. Form the beef into four 4 oz. patties and season the tops with additional Kosher salt.
  9. Heat a non-stick flat grill pan over high heat and let warm up for approximately 3-5 minutes. Lightly coat the grill pan with canola oil spray.
  10. Place the burger patties on the grill pan and cook 2 minutes on one side, then flip and cook another 2 minutes. Add jarlsberg cheese on top of all four patties then cover with a dome shaped lid to melt the cheese.
  11. After about 20-30 seconds, the cheese should be melted. Remove the lids and transfer the burger patties to a cutting board using a spatula.
  12. Once all burger patties are cooked, toast the buns to desired doneness.
  13. To assemble the burgers, spoon a generous amount of the mustard aioli on the bottom bun. Next, top with the burger patty, followed by a handful of caramelized onions and arugula. If desired, spread additional mustard aioli on the top bun, then place on the burger and serve.

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