Jun 04 2026
Restaurants›L'Abattoir›Beef Tenderloin Recipe

Beef Tenderloin Recipe

Inspired by L'Abattoir
Time2h 30m
Serves4

Charred onion, king oyster mushroom, confit potato

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Ingredients

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Beef Tenderloin

Charred Onion

King Oyster Mushroom

Confit Potato

Method

Prepare Confit Potatoes

  1. 1

    Step 1

    Preheat your oven to 250°F (120°C). In a baking dish, combine baby potatoes, garlic, thyme, salt, and olive oil. Ensure potatoes are covered in oil.

  2. 2

    Step 2

    Cover the baking dish with foil and bake for about 2 hours or until the potatoes are tender.

Charred Onion

  1. 3

    Step 1

    Slice the onion into thick rounds. Heat a skillet over medium-high heat and add olive oil. Once hot, add the onion slices and sear until charred, about 3-4 minutes per side.

  2. 4

    Step 2

    Drizzle the balsamic vinegar over the charred onions and season with salt and pepper. Set aside.

Prepare King Oyster Mushrooms

  1. 5

    Step 1

    Slice the king oyster mushrooms lengthwise. Heat olive oil in a skillet over medium heat and add the mushrooms.

  2. 6

    Step 2

    Sauté until golden and tender, about 5-7 minutes. Season with salt and pepper.

Cook Beef Tenderloin

  1. 7

    Step 1

    Remove the beef tenderloin from the refrigerator and let it come to room temperature. Season it generously with salt and pepper.

  2. 8

    Step 2

    In a hot skillet, add olive oil and sear the beef on all sides until browned, about 4-5 minutes per side for medium-rare.

  3. 9

    Step 3

    Let the beef rest for 10 minutes before slicing.

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