star Oklahoma Onion Burger Rated 4.0 stars by 5 users Share on Twitter Share on Facebook Share on Pinterest Share on Whatsapp Servings 6 Prep Time 15 minutes Cook Time 15 minutes Ingredients 2 lbs. 80/20 ground chuck 8 slices of American cheese 8 Potato buns 1 tablespoon salt 2 onions, thinly sliced View Cart (0) Checkout Directions Preheat griddle to medium-high heat. Divide the ground chuck into 2 oz portions and shape them into balls. Using a sharp knife or mandolin, thinly slice the onions. Place the meatballs on the preheated griddle and sprinkle a pinch of salt on each. Add a handful of thinly sliced onions on top of the meat. Press each burger with a burger press, holding for 10 seconds each time. After pressing, flip the burgers and onions; then, add a slice of cheese to each. Quickly assemble the burgers by placing the top bun on the patty and the bottom bun on top of that to create a "sandwich." This helps to steam the bun for about 1 minute. Remove the assembled burgers by taking off the bottom bun, sliding the spatula under the patty and onions, placing the bottom bun under the spatula, squeezing the buns together, and then removing the spatula. Serve immediately and enjoy your delicious cheeseburger sliders Recipe Video