Jul 13 2026
RestaurantsLeunig's BistroSteak Frites Recipe

Steak Frites Recipe

Inspired by Leunig's Bistro
Time1h
Serves4

Marinated Grilled Steak with Port Wine Demi-Glace, Horseradish Sauce & French Fries

Was this page helpful?

Help improve this recipe for others.

Send this recipe to your inbox.

We'll email it straight to you - plus weekly cooking inspiration.

Ingredients

Some product links may be affiliates. If you buy through them, you're supporting the site and Pekin may earn a commission at no extra cost to you.

Marinated Grilled Steak

Port Wine Demi-Glace

French Fries

Method

Marinated Grilled Steak

  1. 1

    Prepare the Marinade

    In a bowl, mix soy sauce, olive oil, minced garlic, black pepper, and fresh thyme. Place the steaks in a resealable bag and pour the marinade over them. Seal and marinate in the refrigerator for at least 1 hour, preferably overnight.

  2. 2

    Grill the Steak

    Preheat the grill to medium-high heat. Remove the steaks from the marinade and discard the marinade. Grill the steaks for about 5-7 minutes on each side for medium-rare, or until desired doneness. Let rest for 5 minutes before slicing.

Port Wine Demi-Glace

  1. 3

    Make the Demi-Glace

    In a saucepan over medium heat, melt the butter and sauté the shallots until translucent. Add the port wine and beef stock, and bring to a boil. Reduce the heat and let simmer until the sauce thickens, about 15-20 minutes. Stir in fresh thyme and season with salt and pepper to taste.

Horseradish Sauce

  1. 4

    Mix the Sauce

    In a small bowl, combine prepared horseradish, sour cream, lemon juice, and salt. Mix well and refrigerate until ready to serve.

French Fries

  1. 5

    Prepare the Fries

    Peel and cut the russet potatoes into strips. Soak them in cold water for at least 30 minutes, then drain and pat dry. Heat vegetable oil in a deep fryer or large pot to 350°F (175°C). Fry the potatoes in batches until golden brown and crispy, about 5-7 minutes. Drain on paper towels and season with salt to taste.

More from Leunig's Bistro