Steak with Caramelized Onions and Mashed Potatoes

Description

A timeless, comforting, and restaurant-style dinner, this Steak with Caramelized Onions and Mashed Potatoes is the perfect balance of rich flavors and homestyle comfort. Juicy, pan-seared steak is paired with buttery, creamy mashed potatoes and topped with sweet, golden caramelized onions that elevate every bite. This dish works equally well for a cozy family dinner or a special occasion.

 Ingredients For Steak with Caramelized Onions and Mashed Potatoes

For the Steak:

  • 2 ribeye or sirloin steaks (about 1 inch thick)

  • 2 tbsp olive oil or butter

  • 2 cloves garlic, smashed

  • 2 sprigs fresh thyme or rosemary

  • Salt and freshly ground black pepper, to taste

For the Caramelized Onions:

  • 2 large yellow onions, thinly sliced

  • 2 tbsp butter

  • 1 tbsp olive oil

  • 1 tsp sugar (optional, enhances caramelization)

  • 2 tbsp balsamic vinegar (optional, for depth)

  • Pinch of salt

For the Mashed Potatoes:

  • 4 medium potatoes (Yukon Gold or Russet), peeled and cubed

  • 4 tbsp butter

  • ½ cup warm milk (or cream for extra richness)

  • Salt and pepper, to taste

Instructions

Step 1: Make the Mashed Potatoes

  1. Boil potatoes in salted water until fork-tender (15–20 minutes).

  2. Drain and mash with butter and warm milk until creamy.

  3. Season with salt and pepper. Keep warm.

Step 2: Caramelize the Onions

  1. Heat butter and olive oil in a skillet over medium-low heat.

  2. Add onions and cook slowly, stirring often, for 25–30 minutes until golden brown.

  3. Add sugar and balsamic vinegar (if using) in the last 5 minutes.

  4. Season lightly with salt.

Step 3: Cook the Steak

  1. Pat steaks dry and season generously with salt and pepper.

  2. Heat a heavy skillet (cast iron preferred) over high heat. Add oil.

  3. Sear steaks 3–4 minutes per side (medium-rare), basting with garlic, butter, and herbs during the last minute.

  4. Remove from skillet, cover loosely with foil, and let rest for 5 minutes.

Step 4: Assemble

  • Serve each steak on a plate, topped with caramelized onions.

  • Add a generous scoop of mashed potatoes on the side.

Notes

  • A cast-iron skillet works best for searing steak evenly.

  • Resting steak ensures juices redistribute, keeping it tender.

  • Yukon Gold potatoes give a buttery flavor, while Russets make fluffier mash.

Tips

  • For extra creamy potatoes, use a potato ricer.

  • Add roasted garlic to mashed potatoes for a flavor boost.

  • Deglaze the onion pan with a splash of wine or beef broth for a quick sauce.

  • Slice steak against the grain for maximum tenderness.

Servings

  • Serves: 2

  • Prep Time: 10 minutes

  • Cook Time: 35–40 minutes

  • Total Time: ~50 minutes

Nutritional Info (per serving, approximate)

  • Calories: 620

  • Protein: 38g

  • Carbohydrates: 42g

  • Fat: 32g

  • Fiber: 4g

  • Sodium: 640mg

Benefits

  • High protein: Supports muscle repair and satiety.

  • Balanced meal: Includes protein, healthy fats, and carbohydrates.

  • Comfort food: Rich in flavor yet simple to prepare.

  • Customizable: Works with any cut of steak or potato variety.

  • ❓ Q&A

Q: Can I make this ahead of time?
A: Yes, caramelized onions can be made a day ahead and reheated. Mashed potatoes can also be made in advance, but add extra milk when reheating.

Q: What if I don’t eat beef?
A: Substitute with chicken breast, pork chops, or even portobello mushrooms for a vegetarian version.

Q: How do I know when my steak is cooked?
A: Use a meat thermometer:

  • Medium-rare: 135°F (57°C)

  • Medium: 145°F (63°C)

  • Medium-well: 155°F (68°C)

Q: Can I add gravy?
A: Absolutely! Pan drippings make an excellent base for a quick red wine or beef gravy.

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