Jul 14 2026
Restaurants›Royal Prime Steakhouse›Royal Burger Recipe

Royal Burger Recipe

Inspired by Royal Prime Steakhouse
Time40m
Serves2

Cooper American, Caramelized Onion & Nguyen Sauce

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Ingredients

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Burger Patties

Caramelized Onions

Nguyen Sauce

Burger Assembly

Method

Prepare Caramelized Onions

  1. 1

    Caramelizing the Onions

    In a skillet, heat the butter and olive oil over medium heat. Add sliced onions and cook, stirring occasionally, until the onions are golden brown and caramelized, about 15-20 minutes.

Make the Nguyen Sauce

  1. 2

    Mix the Sauce

    In a small bowl, combine mayonnaise, sriracha, lime juice, and honey. Whisk until smooth and set aside.

Cook the Burger Patties

  1. 3

    Form and Cook Patties

    In a bowl, mix ground beef with salt, black pepper, and garlic powder. Form into two patties. Preheat a grill or skillet over medium-high heat, then cook the patties for about 4-5 minutes on each side, or until cooked to your desired doneness.

Assemble the Burger

  1. 4

    Building the Burger

    Toast the burger buns if desired. On the bottom bun, place the lettuce, a slice of tomato, the cooked beef patty, a slice of cheddar cheese, caramelized onions, and then drizzle with Nguyen sauce. Top with the other half of the bun and serve.

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