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:
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2 ribeye or sirloin steaks (about 1 inch thick)
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2 tbsp olive oil or butter
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2 cloves garlic, smashed
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2 sprigs fresh thyme or rosemary
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Salt and freshly ground black pepper, to taste
For the Caramelized Onions:
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2 large yellow onions, thinly sliced
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2 tbsp butter
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1 tbsp olive oil
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1 tsp sugar (optional, enhances caramelization)
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2 tbsp balsamic vinegar (optional, for depth)
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Pinch of salt
For the Mashed Potatoes:
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4 medium potatoes (Yukon Gold or Russet), peeled and cubed
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4 tbsp butter
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½ cup warm milk (or cream for extra richness)
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Salt and pepper, to taste
Instructions
Step 1: Make the Mashed Potatoes
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Boil potatoes in salted water until fork-tender (15–20 minutes).
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Drain and mash with butter and warm milk until creamy.
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Season with salt and pepper. Keep warm.
Step 2: Caramelize the Onions
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Heat butter and olive oil in a skillet over medium-low heat.
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Add onions and cook slowly, stirring often, for 25–30 minutes until golden brown.
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Add sugar and balsamic vinegar (if using) in the last 5 minutes.
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Season lightly with salt.
Step 3: Cook the Steak
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Pat steaks dry and season generously with salt and pepper.
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Heat a heavy skillet (cast iron preferred) over high heat. Add oil.
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Sear steaks 3–4 minutes per side (medium-rare), basting with garlic, butter, and herbs during the last minute.
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Remove from skillet, cover loosely with foil, and let rest for 5 minutes.
Step 4: Assemble
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Serve each steak on a plate, topped with caramelized onions.
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Add a generous scoop of mashed potatoes on the side.
Notes
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A cast-iron skillet works best for searing steak evenly.
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Resting steak ensures juices redistribute, keeping it tender.
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Yukon Gold potatoes give a buttery flavor, while Russets make fluffier mash.
Tips
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For extra creamy potatoes, use a potato ricer.
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Add roasted garlic to mashed potatoes for a flavor boost.
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Deglaze the onion pan with a splash of wine or beef broth for a quick sauce.
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Slice steak against the grain for maximum tenderness.
Servings
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Serves: 2
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Prep Time: 10 minutes
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Cook Time: 35–40 minutes
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Total Time: ~50 minutes
Nutritional Info (per serving, approximate)
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Calories: 620
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Protein: 38g
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Carbohydrates: 42g
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Fat: 32g
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Fiber: 4g
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Sodium: 640mg
Benefits
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High protein: Supports muscle repair and satiety.
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Balanced meal: Includes protein, healthy fats, and carbohydrates.
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Comfort food: Rich in flavor yet simple to prepare.
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Customizable: Works with any cut of steak or potato variety.
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❓ 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:
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Medium-rare: 135°F (57°C)
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Medium: 145°F (63°C)
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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.