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Blue Cheese, Caramelized Onion, Arugula Burger

Use a cast iron skillet for a delicious, juicy burger, and up the flavor by adding blue cheese, caramelized onions and arugula
Prep Time 10 minutes
Cook Time 45 minutes
Total Time 55 minutes
Servings 4
Author Meme

Ingredients

For the burgers:

  • 1 pound ground beef lean
  • 1/4 cup blue cheese crumbles
  • 1/4 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1 teaspoon worcestershire sauce

For the caramelized onions:

  • 1 tablespoon butter or oil
  • 1 pound onions sliced

For serving:

  • 1 cup arugula
  • 1/4 cup blue cheese divided
  • 4 hamburger buns whole grain, optional

Instructions

For the burgers:

  • Gently stir together beef, 1/4 cup blue cheese, salt, black pepper, and worcestershire sauce just until incorporated.
  • Shape into 4 thin patties, and refrigerate.

For the onions:

  • Heat a cast iron skillet until hot over medium heat. Add the butter (or oil) to a large cast iron skillet, and add the onions. 
  • Stir well, breaking up the onions and coating the onions in the butter.
  • Cook for 10 minutes. Stir and reduce heat to medium-low. Cook for another 25-35 minutes, stirring every 5-10 minutes, until golden brown. Remove the onions from the skillet and set aside.

Make the burgers:

  • Add the oil to the skillet and turn the heat to medium-high. Place the burgers in the hot skillet and cook for about 3-5 minutes until the burger easily releases.
  • Flip the burger and reduce heat to medium. Cook until the burger reaches desired doneness. (Note: I cooked mine about 5-8 minutes for a medium/medium-well burger)
  • Remove from heat and let rest a few minutes before serving

To serve:

  • Serve each burger with about 1 tablespoon blue cheese, 1/4 cup onions and 1/4 cup arugula with or without a hamburger bun. Enjoy!

Notes

*Using lean (but not extra lean) ground beef keeps the amount of grease splattering to a minimum. I personally don't use extra lean ground beef because I like a little fat to give the meat flavor and tenderness.