1/4cupfinely diced yellow onionabout 1/4 of a small yellow onion
Instructions
Combine all ingredients in one large mixing bowl. Mix until all ingredients are incorporated. Don't over-mix.
Gently form into patties so they hold their shape. Press your thumb in the middle of each patty to create a small indent in the middle for even cooking.
Outdoor grill: preheat to medium high heat. Grease grill with some avocado oil and place each patty on the grill. Grill for about 4 minutes on one side, until a crust forms, then flip. Grill the other side for around 3 minutes. Check the internal temperature until it reaches 145 degrees for medium. (150 for well-done) You may need to put the lid on for an extra minute or so to reach the desired internal temperature.
Indoor skillet: Preheat a cast iron skillet with 1/2 tbsp avocado oil on medium high heat until you can feel the the heat by hovering hand above skillet. Make sure your skillet is hot, this takes about 5 minutes preheating. Place burgers in skillet so they aren't touching. Cook for about 4 minutes on one side until a crust forms and it easily-releases from the skillet to flip. Cook for another 4 minutes until the internal temperature reaches 145 for medium or 150 for well-done.
Remove patties from grill and allow to rest for about 5 minutes. Serve with your favorite toppings. (I love mayo, ketchup, mustard, pickles, raw onions, lettuce and tomatoes!)