Creamy Dijon Mustard Steak
Meats

Creamy Dijon Mustard Steak

ML
By Marie Lefebvre · Updated October 21, 2026

A tender, golden-seared steak draped in a velvety Dijon mustard and cream sauce — this bistro-inspired recipe is weeknight-fast and dinner-party impressive. The pan drippings folded into the sauce are the secret that ties everything together.

Prep⏱️ 20 min
Servings👥 3 servings
Difficulty📊 Easy
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🛒 Ingredients

3 servings

3
  • 500 g (1.1 lb) sirloin or flank steak
  • 1 small onion, finely diced
  • ¾ cup (200 ml) heavy cream
  • 4 tablespoons Dijon mustard
  • 1 tablespoon unsalted butter
  • 1 drizzle of olive oil
  • Salt and freshly ground black pepper

Directions

  1. 1

    Finely dice the onion and sauté in a drizzle of olive oil over medium heat for about 5 minutes, until soft and translucent.

  2. 2

    Reduce the heat, pour in the heavy cream, and stir gently until warm. Stir in the Dijon mustard, season with salt and pepper, and keep on the lowest heat.

  3. 3

    Season the steaks generously on both sides. Heat a skillet over high heat, add the butter, and sear the steaks 2–3 minutes per side to your preferred doneness.

  4. 4

    Deglaze the hot pan with 2 tablespoons of warm water, scraping up all the caramelised bits, and pour these flavourful juices straight into the mustard sauce.

  5. 5

    Spoon the creamy sauce generously over the steaks and serve immediately with steamed potatoes, fresh pasta, or green beans.

💡 Chef's Tip

For extra depth, replace half the Dijon with whole-grain mustard. Letting the steaks rest 2 minutes before saucing keeps every bite juicy.