Cast-Iron Steak with Caramelized Onion–Mushroom Pan Sauce

Transform your dinner into a rustic bistro-style experience with this cast-iron steak recipe. The combination of juicy steak, caramelized onions, and earthy mushrooms creates a dish that is both comforting and sophisticated. The natural sweetness of the onions and the umami richness of the mushrooms elevate any cut of beef, making it a perfect choice for a special occasion or a cozy weekend dinner.

This steak mushroom and onion recipe is not just about cooking a steak; it’s about creating a memorable meal that delights the senses. The savory aroma of searing meat mingles with the sweet scent of caramelizing onions, promising a delightful dining experience.

Why This Recipe Stands Out

What sets this recipe apart is the unique twist of incorporating a quick red-wine balsamic reduction, which adds depth and complexity to the dish. A hint of smoked paprika and fresh thyme enhances the flavors, making this steak and mushroom dish truly exceptional. Perfect for impressing guests or enjoying a luxurious meal at home.

Ingredients

• 2 ribeye or sirloin steaks (about 1 inch thick)
• 1 tablespoon high-heat oil (like canola or grapeseed)
• 1 medium onion, thinly sliced
• 8 ounces cremini mushrooms, sliced
• 2 cloves garlic, minced
• 1/2 cup red wine
• 2 tablespoons balsamic vinegar
• 1 teaspoon smoked paprika
• 1 teaspoon fresh thyme leaves
• Salt and pepper to taste
• Fresh parsley for garnish (optional)

Instructions

1. Prepare the Steaks: Season the steaks generously with salt and pepper on both sides. Let them sit at room temperature for about 30 minutes before cooking.
2. Sear the Steaks: Heat a cast-iron skillet over high heat and add the oil. Once hot, add the steaks and sear for 4-5 minutes on each side for medium-rare, or until desired doneness. Remove the steaks from the skillet and let them rest on a plate.
3. Caramelize the Onions: In the same skillet, reduce the heat to medium. Add the sliced onions and cook, stirring occasionally, until they are golden brown and caramelized, about 10-15 minutes.
4. Add the Mushrooms: Stir in the sliced mushrooms and minced garlic, cooking until the mushrooms are tender and have released their moisture, about 5 minutes.
5. Make the Pan Sauce: Pour in the red wine and balsamic vinegar, scraping up any browned bits from the bottom of the skillet. Add smoked paprika and thyme, and let the sauce simmer for 5 minutes until slightly thickened. Season with salt and pepper to taste.
6. Serve: Slice the rested steaks and serve them topped with the caramelized onion-mushroom pan sauce. Garnish with fresh parsley if desired.

Cook and Prep Times

• Prep Time: 10 minutes
• Cook Time: 30 minutes
• Total Time: 40 minutes

Nutrition Information

• Servings: 2-4 servings
• Calories: 450kcal
• Fat: 30g
• Protein: 35g
• Carbohydrates: 10g