Cheesy Smashed Burgers
with Brussels Sprouts, Caramelized Onion & Special Sauce
- Eggs
- Milk
- Wheat
- Soy
These burgers are sure to be a smash hit. The secret is all in the texture—the crispy, craggy edges, achieved when balls of ground beef are pressed down in a hot pan with a spatula to create super-thin, crispy burgers. Topped with gooey white cheddar, the patties are sandwiched between potato buns with caramelized onion and a homemade special sauce that’s also perfect for pairing with Old Bay fries on the side—and will elicit major “oohs” and “ahhs” from your dining companions.
Ingredients
1 unit
Onion
8 ounce
Brussels Sprouts
1 tablespoon
Old Bay Seasoning
2 tablespoon
Mayonnaise
(Contains: Eggs)
1 unit
Ketchup
2 teaspoon
Dijon Mustard
10 ounce
Ground Beef
½ cup
White Cheddar Cheese
(Contains: Milk)
2 unit
Potato Bun
(Contains: Wheat, Soy)
12 ounce
Potatoes
Not included in your delivery
Salt
Pepper
Cooking Oil
Sugar
Nutrition Values
Utensils
Cooking Steps
• Adjust rack to top position and preheat oven to 425 degrees. Wash and dry produce. • Cut potatoes into 1⁄2-inch-thick wedges. Halve, peel, and thinly slice onion.
• Toss potatoes on a baking sheet with a drizzle of oil and half the Old Bay Seasoning (you’ll use more later). Season lightly with salt and pepper. TIP: No need to season generously—there’s already salt and pepper in the seasoning! • Roast on top rack until browned and crispy, 20-25 minutes.
• While potatoes roast, heat a large drizzle of oil in a medium, preferably nonstick, pan over medium-high heat. Add onion; cook, stirring occasionally, until browned and softened, 8-10 minutes. • Add 1 tsp sugar(2 tsp for 4 servings) and a splash of water; cook until onion is caramelized and jammy, 2-3 minutes more. Season with salt and pepper. • Turn off heat; transfer to a small bowl.
• Meanwhile, in a second small bowl, combine mayonnaise, ketchup, mustard, and as much remaining Old Bay Seasoning as you like. Set aside. • Form beef into two equal-size balls (four balls for 4 servings); season all over with salt and pepper.
• Heat a drizzle of oil in pan used for onion over medium-high heat. Once pan is hot, add beef. Firmly flatten each ball with a spatula to create very thin patties. (TIP: Do so carefully; oil may splatter a bit.) Cook to desired doneness, 3-4 minutes per side. (Don’t worry if the patties aren’t perfectly round—those irregular edges will turn crispy.) • In the last 1-2 minutes of cooking, top patties with cheddar; cover pan to melt cheese. Remove from heat.
• While patties cook, halve and toast buns. • Divide buns between plates and fill with patties, caramelized onion, and half the special sauce. Serve burgers with Old Bay fries on the side and remaining special sauce for dipping.
Ground Meat is fully cooked when internal temperature reaches 160°.
Customer reviews
Review summary
Updated on Dec 2025- Flavor: Smash burgers were a hit, with caramelized onions adding delicious depth. Some suggested using higher-quality beef for even better taste.
- Ease of prep: Difficulty was higher than expected for some, with caramelized onions being tricky to perfect.
- Suggestions: Consider extending potato cooking time beyond 25 minutes for crispier results. Air fryer instructions would be a welcome addition.
