Ingredients for 2 servings:
Prep Time: 5 Mins
Ready In: 30 Mins
Step1: Preheat oven to 450 degrees. Wash and dry all produce. Cut potatoes into ½-inchthick wedges. Trim and peel onion; slice into four ¼-inch-thick rounds (eight rounds for 4 servings). Finely chop remaining onion until you have about ¼ cup (½ cup for 4). Peel and finely chop garlic. Halve buns.
Step 2:Toss potatoes on a baking sheet with a drizzle of oil, salt, and pepper. Roast until golden brown and tender, 20-25 minutes. Remove from sheet.
Step 3: Meanwhile, in a small bowl, combine mayonnaise, mustard, and a pinch of garlic to taste. Season with salt and pepper. Form beef into two patties (four patties for 4 servings), each a bit wider than a burger bun. Season all over with salt and pepper; set aside.
Step 4:Heat a drizzle of oil in a large pan over medium-high heat. Add chopped onion and season with salt and pepper. Cook, stirring, until lightly browned, 4-5 minutes. Turn off heat; stir cooked onion into mayonnaise mixture. Heat another drizzle of oil in same pan over medium-high heat. Add onion rounds and cook until deeply browned and tender, 2-3 minutes per side. Transfer to a plate.
Step 5:Heat a drizzle of oil in same pan over medium-high heat. Add patties and cook until browned and cooked to desired doneness, 3-5 minutes per side.
Step6: While patties cook, place remaining garlic and 1 TBSP butter (2 TBSP for 4 servings) in a small microwave-safe bowl; microwave until melted, 30 seconds. Brush onto cut sides of buns and place cut sides up on baking sheet used for potatoes. Toast in oven until golden, 3-5 minutes. Fill toasted buns with patties, aioli, and griddled onion rounds. Serve with potatoes and, if you’ve got some on hand, ketchup on the side for dipping
NUTRITION PER SERVING
Calories 910kcal, Fat 52g, Saturated Fat 17g, Carbohydrate 67g, Sugar 10g, Dietary Fiber 6g, Protein 35g, Cholesterol 120mg, Sodium 670mg