Jun 04 2026
Restaurants›acquafarina›The Smash Burger Recipe

The Smash Burger Recipe

Inspired by acquafarina
Time1h
Serves2

Double hand pressed wagyu beef patties, truffle aioli, caramelized onions, cripsy shallots, fontina, fries

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Ingredients

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Burger Patties

Truffle Aioli

Caramelized Onions

Crispy Shallots

Cheese

Fries

Burger Assembly

Method

Prepare the Truffle Aioli

  1. 1

    Mix Aioli Ingredients

    In a small bowl, combine mayonnaise, truffle oil, and minced garlic. Stir until well mixed. Set aside.

Caramelize the Onions

  1. 2

    Cook Onions

    In a skillet over medium heat, add olive oil and sliced onions. Sprinkle with salt and cook, stirring occasionally, until onions are golden brown and caramelized, about 15-20 minutes.

Prepare the Crispy Shallots

  1. 3

    Fry Shallots

    In a bowl, toss the sliced shallots with flour until coated. Heat oil in a deep pan over medium-high heat. Once hot, add shallots in batches and fry until golden brown. Drain on paper towels and set aside.

Make the Fries

  1. 4

    Fry Potatoes

    In a deep fryer or large pot, heat oil to 350°F (175°C). Fry the cut potatoes until golden and crispy, about 4-5 minutes. Remove and drain on paper towels, season with salt to taste.

Cook the Burgers

  1. 5

    Form and Cook Patties

    Divide the wagyu beef into two equal portions and form into balls. Season with salt and pepper. Heat a skillet or griddle over high heat, and when hot, place the beef balls on it. Using a spatula, smash them down to form patties. Cook for about 2-3 minutes per side, adding a slice of fontina cheese on top during the last minute of cooking to melt.

Assemble the Burgers

  1. 6

    Build Your Burger

    Toast the burger buns lightly. Spread a generous amount of truffle aioli on the bottom bun. Add the cooked wagyu patties, top with caramelized onions, crispy shallots, and the top bun.

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