Crispy Cheddar Frico Cheeseburgers

🥘 Ingredients

• brioche buns
  4 unit
• broccoli florets
  1 lb
• cheddar cheese
  1 c
• ground beef
  20 oz
• ketchup
  4 tbsp
• olive oil
  2 tbsp
• pepper
• roma tomato
  2 unit
• salt
• sherry vinegar
  5 tsp
• sugar
  2 tsp
• yellow onion
  1 unit

🍳 Cookware

• baking sheet
• large pan
• small bowl
• parchment paper

1. 

   1

   Adjust racks to middle and top positions and preheat oven to 425 degrees. Wash and dry all produce. Halve, peel, and thinly slice yellow onion . Slice roma tomato into rounds. Halve brioche buns . Shape ground beef into two equal-sized patties (four for 4 servings), each slightly wider than buns.

   yellow onion: 1 unit, roma tomato: 2 unit, brioche buns: 4 unit, ground beef: 20 oz
2. 

   2

   Toss broccoli florets on a baking sheet with a drizzle of olive oil and a pinch of salt and pepper . Roast on top rack until browned and slightly crispy, ⏱️ 20 minutes .

   broccoli florets: 1 lb, olive oil: 2 tbsp, salt, pepper
3. 

   3

   Heat a drizzle of olive oil in a large pan over medium-high heat. Add onion and cook, stirring, until soft, ⏱️ 6 minutes . Stir in half the sherry vinegar (use all for 4 servings) and 1 tsp sugar (2 tsp for 4 servings). Simmer until liquid is nearly evaporated, ⏱️ 2 minutes . Season with salt and pepper. Turn off heat; transfer to a small bowl . Wipe out pan.

   sherry vinegar: 5 tsp, sugar: 2 tsp
4. 

   4

   Grease a second baking sheet with cooking spray. (TIP: Alternatively, lightly oil baking sheet or line with parchment paper .) Place cheddar cheese on sheet in two even piles (four for 4 servings). Bake on middle rack until melted in middle and crispy at the edges, ⏱️ 7 minutes . Let cool on sheet for about ⏱️ 1 minute after removing from oven, then transfer to a plate using a spatula to cool further.

   cheddar cheese: 1 c
5. 

   5

   Season patties all over with salt and pepper. Heat a drizzle of olive oil in pan used for jam over medium-high heat. Add patties and cook to desired doneness, ⏱️ 6 minutes per side. Meanwhile, place buns on sheet used for cheddar frico. Toast in oven until golden, ⏱️ 4 minutes .
6. 

   6

   Fill each bun with a patty, onion jam, tomato slices, ketchup , and a cheddar frico. Serve with broccoli on the side.

   ketchup: 4 tbsp