In-N-Out Double Double 🍔✨ For the Burger Patties:▪️8 oz. 80% Lean Ground Beef▪️1/2 tsp Kosher Salt▪️1/4 tsp Pepper▪️ For the Sauce:▪️2 Tbsp Mayo▪️1 Tbsp Ketchup▪️2 tsp Sweet Pickle Relish▪️1/4 tsp White Vinegar▪️1/8 tsp Yellow Mustard▪️1 Tiny Pinch Salt▪️ For the Grilled Onions (optional):▪️2 Tbsp Butter▪️1 Medium Sweet Onion, diced small▪️Kosher Salt & Pepper▪️ For the Burgers:▪️2 Burger Buns▪️1 Tbsp Butter, softened▪️2 Slices Hot House Tomato▪️2 Sheets Iceberg Lettuce▪️4 Slices American Cheese▪️ 1️⃣ Cut four pieces of parchment paper in 4+1/2” squares; mix the ground beef with 1/2 tsp kosher salt and 1/4 tsp pepper and then form into four equal balls; press the balls onto the parchment paper into four thin 4+1/2” patties (they will shrink as they cook) and set aside in the fridge to firm up 2️⃣ Mix together the ingredients for the sauce and set aside 3️⃣ In a large pan over medium heat, melt 2 Tbsp butter and then add the diced onions; sprinkle with salt and pepper and sauté until tender and deep golden brown (10-12 mins); remove from the pan 4️⃣ Spread a thin layer of softened butter on the cut side of the burger buns and toast cut side down in the pan over medium heat for 1-2 mins until deep golden brown; remove from the pan 5️⃣ Add 1 tsp oil to the pan along with the burger patties; sear patties 1-2 min on the first side (until browned), flip, and add a slice of American cheese on top of each patty; cook 1 more min then stack patties on top of each other (so that there are two patties and two slices of cheese per burger) 6️⃣ On the bottom bun, add special sauce, tomato, lettuce, the burger patties w/ cheese, and grilled onions (in that order); top with the other side of the bun and enjoy! ⏲15 minute prep time + 20 minute cook time Recipe makes two double doubles
