Pan-Seared Steak with Garlic Butter Mustard Sauce

If you’re craving a restaurant-quality steak dinner that’s both easy to make and packed with flavor, this Pan-Seared Steak with Garlic Butter Mustard Sauce is exactly what you need. Juicy flank steak strips are marinated in a savory blend of soy sauce, olive oil, and Sriracha, then perfectly seared and finished with a luscious garlic butter mustard sauce. The rich, buttery sauce, infused with fresh herbs and a hint of tangy mustard, takes this dish to the next level. Serve it with your favorite sides for a delicious meal that’s sure to impress even the most discerning steak lovers!

Ingredients:

For the Steak Marinade:

• ¼ cup (60 ml) soy sauce (or coconut aminos for paleo and gluten-free)
• 1 tablespoon olive oil
• 1 tablespoon Sriracha (or any hot sauce you prefer)
• Fresh cracked black pepper, to taste

For the Steak and Sauce:

• 1 lb (450 g) flank steak, cut into strips
• 3 tablespoons unsalted butter, divided
• 1 small shallot, finely chopped
• 3 garlic cloves, minced
• Pinch of red chili pepper flakes, to taste
• 1 tablespoon Dijon mustard
• 3 teaspoons minced fresh thyme
• 1 tablespoon finely minced chives
• ½ cup beef stock (or water)
• 1 tablespoon lemon juice
• Season with salt and freshly cracked black pepper according to your preference.
• Fresh chopped parsley, for garnish

Instructions:

1. Marinate the Steak:
   • In a bowl, combine the soy sauce (or coconut aminos), olive oil, Sriracha, and fresh cracked black pepper.
   • Add the steak strips to the marinade, making sure they are well coated.
   • Seal and chill in the refrigerator for a minimum of 30 minutes, or up to 2 hours for a bolder flavor.
2. Sear the Steak:
   • Heat 1 tablespoon of unsalted butter in a large skillet over medium-high heat.
   • Sear the steak strips in the hot skillet for 2-3 minutes on each side, or until they are browned and cooked to your desired doneness.
   • Tent with foil to keep warm.
3. Make the Garlic Butter Mustard Sauce:
   • In the same skillet, add 1 more tablespoon of unsalted butter.
   • Add the finely chopped shallot and sauté for about 1-2 minutes until softened and fragrant.
   • Add the minced garlic and a pinch of red chili pepper flakes.
4. Deglaze the Pan:
   • Pour in the beef stock (or water) and lemon juice to deglaze the pan, scraping up any browned bits from the bottom of the skillet.
   • Allow the liquid to simmer and reduce slightly, about 2-3 minutes.
5. Finish the Sauce:
   • Stir in the Dijon mustard, minced thyme, and minced chives. Add the remaining tablespoon of butter and stir until melted and the sauce is smooth and glossy.
6. Combine and Serve:
   • Return the seared steak strips to the skillet, tossing them in the sauce to coat evenly. Allow the steak to warm through in the sauce for about 1-2 minutes. Remove from heat.
7. Garnish and Serve:
   • Transfer the steak strips to a serving platter, spooning any remaining sauce over the top. Garnish with fresh chopped parsley and serve immediately with your favorite sides such as mashed potatoes, steamed vegetables, or a fresh salad.

Conclusion:

This Pan-Seared Steak with Garlic Butter Mustard Sauce is a true showstopper that brings together tender, flavorful steak and a rich, buttery sauce that’s bursting with garlic and herb goodness. The perfect combination of savory, tangy, and slightly spicy flavors makes this dish a standout for any occasion, from weeknight dinners to special celebrations. With minimal ingredients and a simple cooking method, this recipe lets you enjoy a gourmet steak dinner at home with ease. Treat yourself and your loved ones to this delicious and impressive dish tonight!