Air Fryer Hamburgers

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  90/10 Ground Beef(454g)
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  Olive oil(15g)

  Regular (not extra-virgin) olive oil for high-heat cooking. EVOO for dressings.

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  Mustard, Dijon(10g)

  Dijon mustard — Grey Poupon or store brand. Spicier than yellow mustard.

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  Garlic powder(3g)
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  ½ teaspoon kosher salt
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  ½ teaspoon ground black pepper
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  Bread, Brioche Bun

Instructions

1. 1Place the ground beef in a large mixing bowl and add a drizzle of olive oil, Dijon mustard, garlic powder, salt, and pepper. Gently stir with a fork to combine, handling the meat as little as possible to keep the burgers tender.
2. 2Gently shape the beef into 4 equal patties approximately 1/2-inch thick. Using your thumb, press a shallow indentation in the center of each patty to prevent them from puffing up during cooking.
3. 3Heat a large skillet over medium-high heat and lightly coat the bottom with olive oil. Once the oil shimmers, carefully place the patties in the skillet, leaving space between each one.
4. 4Cook the patties for 3–4 minutes without moving them, until the bottom is golden brown and develops a crust. Flip each patty and cook for an additional 2–3 minutes, until the internal temperature reaches 155°F when measured with a meat thermometer.
5. 5During the last minute of cooking, if desired, place a slice of cheese on each patty and cover the skillet briefly to allow it to melt.
6. 6Transfer the cooked burgers to a clean plate and let them rest for 1–2 minutes while you lightly toast the brioche buns cut-side down in the same skillet over medium heat for 1–2 minutes, until lightly golden.
7. 7Assemble each burger by placing a patty on a toasted bun with your choice of toppings.
8. 8Divide the remaining burgers evenly into 4 airtight containers while still warm. Store in the refrigerator for up to 4 days and reheat gently in a skillet or microwave before serving.