2small handfuls leafy greensspinach, arugula, baby kale
1/4teaspooncracked black pepper
In a mixing bowl, combine the beef, egg, garlic powder, onion powder, salt and pepper. Mix with hands to combine and form into two burgers. Press you thumb lightly into the center of each (this helps keep your burgers flat as they cook).
Prep Onions: Slice onion into thin half moons. Heat a small saute pan over medium heat and add olive oil. Once hot, add the onions to pan and stir. Cook for 25 minutes on medium-low heat, stirring very few minutes to keep onions from sticking.
Prep Aioli: In a small bowl, combine the mayo, garlic clove, lemon juice, olive oil, salt and pepper. Set aside.
Grill the burgers on high heat for 7 minutes per side. With a couple minutes left on the final side, add 1 1/2 slices of brie to each burger. Let them melt down.
Toast the brioche buns on the grill, cut side down, for 1 minute.
Build the burger by layering the onions and greens on top of the burger with melted brie. Add the garlic aioli to the top bun and take a big juicy bite!
Recipe from Sip + Spice | Bistro Burgers with Brie and Caramelized Onions - http://sipandspice.com/bistro-burgers-brie-caramelized-onions/