Caramelize the Onions

• -Dice the onions finely.
• - In a skillet, melt 2 tablespoons of butter over medium heat.
• - Add the onions to the skillet and season with a pinch of salt.
• - Cook the onions, stirring occasionally, until they are deep brown and caramelized. This should take about 15-20 minutes. Set aside.

Prepare the Patties

• - Divide the ground beef into 4 quarter-pound portions.
• - Season the beef to your liking and shape each portion into a circle and set them aside on a piece of baking paper while you prepare the other ingredients.
• -Note: I personally don't go overboard with the seasoning in my beef. A simple sprinkle of salt and pepper and a few other spices works perfectly.

Make the In-N-Out Sauce

• - Finely chop the pickles.
• - In a bowl, mix together the chopped pickles, caramelised onions ,mayonnaise, ketchup, and Worcestershire sauce.
• - Stir until well combined. This is your homemade In-N-Out sauce.

Cook the Patties

• - Heat a cast iron skillet over medium-high heat.
• - Place the patties in the skillet. Use a piece of parchment paper and a potato masher to press them down to get a nice sear.
• - Cook the patties for 2-3 minutes on each side, or until they reach your desired doneness.
• - **Note:** Cook it on medium-high heat. Cooking your beef on low heat makes all the juices ooze out and leaves you with a dry patty. Don't overcook them.
• - Flip the patties and add a slice of American cheese to each one. Let the cheese melt.

Toast the Buns

• - Toast the burger buns in the same skillet until they are golden brown.

Assemble the Burger

• - Spread the homemade In-N-Out sauce on the bottom bun.
• - Place a patty with melted cheese on top.
• - Add a generous amount of caramelized onions (optional)
• - Top with lettuce and tomato slices.
• - Add another patty with cheese.
• - Spread with more sauce and crown with the top bun.

Enjoy your delicious homemade In-N-Out Burger!