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Caramelized Onion Burger Stuffed with Blue Cheese

Servings 6


  • 2 lbs. extra lean ground beef
  • 1 large sweet onion
  • 1 Tbsp. olive oil
  • 1 tsp. sugar
  • 2 Tbsp. chopped herbs (oregano, basil, thyme)
  • 1 tsp. Worcestershire sauce
  • 1/2 tsp. fresh ground black pepper
  • 4 oz. good quality blue cheese
  • 6 hamburger buns
  • avocado, tomato, arugula, mustard, mayo and other condiments of your choosing


  • Slice the onion thinly. Heat the olive oil in a large skillet over medium-high heat. Add the onion and sugar and reduce heat to medium low. Sauté the onions, stirring frequently, until they are golden brown and well caramelized – about 15 minutes. Remove from heat.
  • When onion has cooled, place it in a small food processor and pulse to a coarse puree.
  • In a medium bowl, combine the ground beef, Worcestershire sauce, fresh herbs, black pepper and the onion. Mix well.
  • Divide the meat into 12 equal portions.
  • Flatten each of the portions into patties – about 1/2″ thick (do not make them too thin).
  • Place 1 heaping Tbsp. of blue cheese in the center of 6 patties.
  • Top each with one of the remaining 6 patties and pinch the edges to seal.
  • Refrigerate the patties for 1/2 hour.
  • Grill the burgers until they are cooked to your liking.
  • Serve burgers on toasted buns with avocado, tomato, arugula or lettuce, and your other favorite burger condiments.