Cheesy Smashed Burgers

🥘 Ingredients

• Dijon mustard
  4 tsp
• Old Bay Seasoning (divided)
  2 tbsp
• cooking oil
• ground beef
  20 oz
• ketchup
  2 unit
• mayonnaise
  4 tbsp
• onion (thinly sliced)
  2 unit
• pepper
• potato bun
  4 unit
• potatoes
  24 oz
• salt
• sugar
  1 tsp
• white cheddar cheese
  1 c

🍳 Cookware

• baking sheet
• medium pan
• small bowl

1. 

   1

   Adjust rack to top position and preheat oven to 425 degrees. Wash and dry all produce. Cut potatoes into 1/2-inch-thick wedges. Halve, peel, and thinly slice onion .

   potatoes: 24 oz, onion: 2 unit (thinly sliced)
2. 

   2

   Toss potatoes on a baking sheet with a drizzle of cooking oil and half the Old Bay Seasoning . 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 minutes .

   cooking oil, Old Bay Seasoning: 2 tbsp (divided), salt, pepper
3. 

   3

   While potatoes roast, heat a large drizzle of cooking oil in a medium pan over medium-high heat. Add onion; cook, stirring occasionally, until browned and softened ⏱️ 8 minutes . Add sugar and a splash of water; cook until onion is caramelized and jammy ⏱️ 2 minutes more. Season with salt and pepper. Turn off heat; transfer to a small bowl .

   cooking oil, sugar: 1 tsp
4. 

   4

   Meanwhile, in a second small bowl, combine mayonnaise , ketchup , Dijon mustard , and as much remaining Old Bay Seasoning as you like. Set aside. Form ground beef into two equal-size balls; season all over with salt and pepper.

   mayonnaise: 4 tbsp, ketchup: 2 unit, Dijon mustard: 4 tsp, ground beef: 20 oz
5. 

   5

   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 ⏱️ 4 minutes per side. (Don't worry if the patties aren't perfectly round—those irregular edges will turn crispy.) In the last minute of cooking, top patties with white cheddar cheese ; cover pan to melt cheese. Remove from heat.

   white cheddar cheese: 1 c
6. 

   6

   While patties cook, halve and toast potato bun . 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°.

   potato bun: 4 unit