Cheddar Cheeseburgers with Caramelized Onions

  • Author: Jenna
  • Prep Time: 10 min
  • Cook Time: 5-10 min
  • Total Time: 30 to 40 min
  • Yield: 4 1x


My favorite type of burger is a smashed burger or thin burger. Whatever you like to call it. They fit on the bun nicely and the toppings are easy to put on and they STAY on. 



  • 2 teaspoons olive oil
  • 2 tablespoons butter 
  • 2 cups thinly sliced onions
  • 1/4 teaspoon kosher salt
  • 1 pound lean ground beef, 93% lean
  • 1 teaspoon of seasoning salt

  • 2 ounces shredded sharp cheddar cheese (reduced fat) (about 1/2 cup
  • 4 pieces of leaf lettuce
  • 4 (1 1/2-ounce) Lite hamburger buns, toasted


  1. Preheat your Blackstone griddle to high heat.
  2. On one side of the griddle add the olive oil and butter, and let it heat for about a minute.
  3. Add the onions to the griddle, and sprinkle with salt and pepper. Use a spatula to toss the onions frequently to prevent sticking and ensure even cooking.
  4. Continue cooking the onions on the griddle for about 20-25 minutes, or until they are soft and caramelized to your liking.
  5. Divide the ground beef into 4 equal portions and form into balls.
  6. Season each ball with salt and pepper on both sides.
  7. Place a ball onto the griddle and smash it down with a spatula until it's about 1/4 inch thick.
  8. Repeat with the remaining balls and leave them on the griddle for about 2-3 minutes until the edges start to brown and the burgers release from the griddle.
  9. Flip each burger and add a slice of American cheese on top.
  10. Let the cheese melt for about 30 seconds.
  11. While the cheese is melting, butter the brioche buns and place them on the griddle until they are toasted.
  12. Assemble the burgers with the buns and your desired condiments.


myWW Points: 9 (all 3 plans)

  • Category: Medium
  • Method: Grill
  • Cuisine: American


  • Serving Size: 1 burger

Keywords: smashed burgers with caramelized onions