Copycat In-N-Out Burger

Ingredients

• 2 pieces Burger Buns (soft, sesame‑seed topped, toasted)
• 1 lb Ground Beef (80% lean, formed into four 4‑oz patties (2 per burger))
• 1 tsp Yellow Mustard (added to each patty before flipping)
• 1 medium White Onion (thinly sliced for caramelization)
• 2 tbsp Sweet Pickle Relish (base of the special sauce)
• 2 tbsp Ketchup (part of the special sauce)
• 1 tsp Granulated Sugar (adds sweetness to the sauce)
• 2 tbsp Mayonnaise (creamy component of the special sauce)
• 1 tsp White Wine Vinegar (gives the sauce its tang)
• 4 slices Dill Pickle Slices (topping)
• 1/2 medium Tomato (sliced into 2 rounds per burger)
• 2 leaves Lettuce (iceberg or romaine, kept crisp)
• 1 tbsp Butter (for toasting buns)
• to taste Salt (season beef patties)
• to taste Black Pepper (season beef patties)

Instructions

1. Slice the Onion

   Trim the ends of the white onion and slice it thinly into half‑moon strips.

   Time: PT5M

2. Caramelize the Onion

   Heat a skillet over medium heat, add a splash of oil, then add the sliced onion. Cook, stirring occasionally, for about 20 minutes until the onions are deep golden and sweet.

   Time: PT20M

   Temperature: medium heat

3. Prepare the Special Sauce

   In a mixing bowl combine sweet pickle relish, ketchup, sugar, mayonnaise, and white wine vinegar. Stir until smooth and set aside.

   Time: PT5M

4. Form the Beef Patties

   Divide the ground beef into four equal portions (about 4 oz each). Gently shape each portion into a flat patty slightly larger than the bun; avoid over‑working the meat.

   Time: PT5M

5. Season and Add Mustard

   Season both sides of each patty with salt and pepper. When the patties are sizzling, spread 1 tsp yellow mustard on the top side of each patty before flipping.

   Time: PT2M

   Temperature: medium‑high heat

6. Cook the Patties

   In the same skillet, cook the patties for about 3‑4 minutes on the first side, then flip, add the mustard side down, and cook another 3‑4 minutes until they reach medium‑rare to medium doneness.

   Time: PT8M

   Temperature: medium‑high heat

7. Toast the Buns

   Butter the insides of each bun lightly. In a clean skillet over medium heat, toast the buttered sides until golden, about 2 minutes.

   Time: PT2M

   Temperature: medium heat

8. Assemble the Burger

   Spread a generous layer of the special sauce on the bottom bun, add a pickle slice, a tomato slice, lettuce, two cooked patties, a handful of caramelized onions, and another drizzle of sauce. Top with the bun half.

   Time: PT2M

Nutrition Facts

Calories

800

Protein

55 g

Carbohydrates

40 g

Fat

70 g

Fiber

3 g