4Add Worcestershire sauce, jalapeños and water. Simmer uncovered 5–7 minutes, stirring occasionally, until the liquid has completely reduced and the beef is moist but not watery. Taste and adjust salt if needed. Remove from heat and cool slightly.
5For the sauce, mix mayonnaise, ketchup, mustard, Worcestershire sauce, pickles, pickle juice, onion, garlic powder, smoked paprika, sugar and black pepper until smooth. Refrigerate until ready to use.
6Lay out the tortillas and spread about 1 tbsp sauce slightly below the center. Add about 1/4 cup beef, 2 tbsp cheese, caramelized onions and pickled jalapeños. Fold the bottom over the filling, fold in the sides and roll tightly.
7Heat a thin layer of oil in a skillet over medium heat. Place wraps seam-side down and cook 2–3 minutes per side, pressing gently, until golden and crispy. Continue cooking until all sides are crisp and the cheese is melted.
8Rest 1–2 minutes, slice in half and serve immediately with extra cheeseburger sauce.