Sid's Onion Burger

Total Time: 2 mins Cook Time: 2 mins

Ingredients

• Servings: 6
• 4 tablespoons canola oil
• 1 lb ground beef (gently formed into 6 balls)
• 2 medium yellow onions (very thinly sliced with a mandoline or a sharp knife and divided into 6 equal portions)
• kosher salt, to taste
• 6 slices american cheese
• 6 hamburger buns, toasted

Recipe

• 1 working in 2 batches, heat 2 tablespoons oil in a 12" cast-iron skillet over medium-high heat.
• 2 add 3 beef balls and, using the back of a spatula, press down on them until they're thin; cook for 1 minute.
• 3 top each patty with a portion of the onions; season with salt.
• 4 press onions into the meat and cook for 1 minute more.
• 5 flip burgers; flatten with the spatula. place a cheese slice on each patty and let melt while onions and meat brown.
• 6 serve on buns.