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3 Ingredient Diner Onion Burgers

Enjoy a quick and delicious diner-style burger made with just ground beef, caramelized onions, and soft hamburger buns.
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Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings: 4 servings
Course: Dinner, Main Course
Cuisine: American
Calories: 480
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 1.5 pounds ground beef (80/20) Choose beef with a good balance of fat for flavor.
  • 3 large yellow onions, very thinly sliced Ensure the onions are sliced very thin for caramelizing.
  • 4 pieces soft hamburger buns, split These will hold the patties and onions.

Method
 

Preparation
  1. Peel and very thinly slice the onions, then separate them into strands.
  2. Shape the ground beef into 4 loose portions and keep them chilled until cooking.
Cooking
  1. Heat a skillet on medium-high heat and add the prepared onions. Cook for 10 to 15 minutes, stirring occasionally, until they become soft and golden, then caramelized.
  2. Smash the chilled beef portions onto the caramelized onions to form patties. Do not move them for 3 to 4 minutes.
  3. Flip the patties and cook for another 2 to 3 minutes until done to your liking.
  4. Toast the hamburger buns in the same skillet until golden.
  5. Assemble your burgers by placing a patty on a bun and topping with caramelized onions. Serve immediately.

Notes

Serve hot and fresh. You can add cheese during the last minute of cooking if desired. Store leftovers in an airtight container for up to 3 days; reheat in a skillet or microwave.