Prep Time:
20 mins
Cook Time:
40 mins
Total Time:
1 hr
Servings:
4
Yield:
4 burgers
Ingredients
Directions
Stir together mayonnaise, ketchup, relish, sugar, and
vinegar in a small bowl for the sauce.
Heat butter and 1 tablespoon oil in a nonstick skillet
over medium heat. Add onions and season with ¼ teaspoon salt. Cook, stirring occasionally, until onions are tender and golden brown, about 20 minutes. When skillet starts to become dry, add 1 tablespoon water. Continue cooking, stirring often, adding more water as needed, 1 tablespoon at a time, until onions are very soft, deeply browned, and jammy, 10 to 15 minutes more. You may not need to use all the water. Remove from heat.
Shape beef into 8 patties, about 3/8-inch-thick and 4
inches in diameter. Sprinkle with pepper and remaining 1/2 teaspoon salt.
Heat 1 teaspoon oil in a large cast-iron skillet over
medium-high heat. Working in batches as needed, add patties to skillet. Spread 2 teaspoons mustard over top of each patty. Cook until browned, about 2 minutes per side. Top patties with cheese and onions. Cook, covered, about 30 seconds, until cheese is melted. An instant-read thermometer inserted into the center should read at least 160 degrees F (70 degrees C). Layer patties to create 4 stacks.
Spread sauce onto bun bottoms. Fill each bun with 4 pickles, a tomato slice, lettuce, and 1 patty stack.
Nutrition Facts (per serving)
| 952 | Calories |
| 60g | Fat |
| 56g | Carbs |
| 47g | Protein |
