Best Ever Caramelized Onion Mashed Potatoes

Best Ever Caramelized Onion Mashed Potatoes (The Ultimate Comfort Food Side Dish)

If you’re looking to elevate your dinner game, look no further than these Best Ever Caramelized Onion Mashed Potatoes! Imagine creamy, buttery Yukon Gold potatoes infused with the rich, sweet flavor of deeply caramelized onions, all topped with fresh herbs. This dish doesn’t just sit on your plate; it sings a savory serenade that wraps you in a warm, cozy hug. Perfect for those family gatherings or just a delightful weeknight indulgence, these mashed potatoes are sure to steal the show!

Main dish photo
The finished dish — looks amazing, right?

Why You’ll Love This Recipe

Get ready to be enchanted by the magic of mashed potatoes!
Big, Bold Flavors: The combination of caramelized onions, fresh herbs, and parmesan cheese creates a taste explosion that will leave you craving more.
Crowd-Pleaser: Whether it’s a holiday feast or a casual dinner, these mashed potatoes are always a hit with family and friends.
Flexible & Fast: With simple ingredients and straightforward steps, you’ll whip up this dish in no time.
Make-Ahead Magic: Perfect for prepping in advance, these mashed potatoes can easily be reheated, making your mealtime stress-free!

Ingredients You’ll Need

Gather the stars of your culinary creation! These ingredients come together to create the ultimate mash that will knock your socks off. The key players here are those caramelized onions that add depth and sweetness, and the creamy dairy (or dairy-free) options that make this dish irresistibly smooth.

Another beautiful angle of the dish
Just as gorgeous from this angle too!

– 2 Tablespoons Olive Oil
– 4 Yellow Onions (sliced thin and evenly)
– 2 Pounds Yukon Gold Potatoes (washed)
– 4 Tablespoons Salted Butter (or non-dairy butter, if preferred)
– 3/4 Cup Half & Half or Full-Fat Coconut Milk or Dairy-Free Milk
– 1 Teaspoon Kosher Salt
– 1 Cup Parmesan Cheese (freshly grated)
– 1 Bunch Chives (thinly chopped)
– 2 Sprigs Fresh Thyme (stems removed)
– 3 Leaves Fresh Sage (chopped)

*Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.*

Variations

One of the best things about these Best Ever Caramelized Onion Mashed Potatoes is how easily you can mix it up! Here are some fun and delicious variations to try:
Go Gluten-Free: Ensure your dairy options are gluten-free, so everyone can enjoy this comforting dish!
Add Extra Protein: Stir in cooked bacon bits or sautéed mushrooms for an added flavor boost.
Make it Spicier: For a kick, add a pinch of cayenne pepper or chopped jalapeños!
Swap the Dressing: Experiment with different cheeses like goat cheese or feta for a unique twist.
Colorful Additions: Toss in roasted garlic or caramelized shallots for an extra layer of flavor.

How to Make Best Ever Caramelized Onion Mashed Potatoes

Ready to dive in? Here’s how to create these heavenly mashed potatoes step by step!

Step 1: Slice Those Onions

Peel the skin off your yellow onions and slice them thinly. It may seem like a mountain of onions, but trust the process!

Step 2: Heat the Oil

In a large skillet over medium heat, add the olive oil and let it warm up until it shimmers.

Step 3: Caramelize the Onions

Toss those sliced onions into the skillet. Stir them occasionally, allowing them to slowly brown and caramelize for about 40-50 minutes until they’re golden and sweetly fragrant. Patience is key here!

Step 4: Prepare the Potatoes

While the onions are working their magic, give your Yukon Gold potatoes a good wash and chop them into small pieces. No need to peel them unless you prefer to!

Step 5: Boil the Potatoes

In a large pot, bring water to a rolling boil. Add the chopped potatoes and cook for 20 minutes, or until they’re fork-tender.

Step 6: Mash It Up

Once the potatoes are perfectly tender, drain the water, and get mashing!

Step 7: Add Creaminess

Incorporate the salted butter, kosher salt, and half & half (or your dairy-free choice) into the potatoes. Mash until you achieve a smooth, creamy consistency.

Step 8: Mix in the Onions

Once those onions are caramelized and ready, remove half of them and fold them into the mashed potatoes along with the freshly grated parmesan cheese until well mixed.

Step 9: Top with More Goodness

Transfer your luscious mashed potatoes into a serving bowl and top with the remaining caramelized onions, chopped chives, thyme, sage, and a drizzle of melted butter. Serve and watch the smiles spread!

Pro Tips for Making Best Ever Caramelized Onion Mashed Potatoes

Be Patient with the Onions: Caramelizing onions is an art! Let them cook low and slow for the best flavor.
Don’t Skip the Seasoning: Season the potatoes while mashing to ensure every bite is flavorful.
Use a Potato Ricer: For ultra-smooth potatoes, consider using a potato ricer instead of a masher.
Experiment with Flavors: Don’t hesitate to add your favorite spices or herbs to give the dish your personal touch.

How to Serve Best Ever Caramelized Onion Mashed Potatoes

Garnishes

Sprinkle additional chopped chives or a drizzle of truffle oil for an elevated presentation and flavor!

Side Dishes

These mashed potatoes pair beautifully with roasted chicken, grilled steak, or a hearty vegetarian entrée.

Creative Ways to Present

Serve these dreamy mashed potatoes in individual cups for an elegant touch at dinner parties, or create a beautiful platter for family feasts!

Make Ahead and Storage

Storing Leftovers

Store any leftovers in an airtight container in the refrigerator for up to 3 days.

Freezing

While these mashed potatoes can be frozen, it’s best to enjoy them fresh. If freezing, keep in mind that the texture may change slightly upon reheating.

Reheating

Reheat gently in the microwave or on the stovetop, adding a splash of milk to restore creaminess.

FAQs

Can I use a different type of cheese?
Absolutely! Feel free to experiment with different cheeses like cheddar or gouda for a unique flavor twist.

Is this recipe gluten-free?
Yes, just ensure you use gluten-free dairy options if necessary!

Can I prepare this in advance?
Yes! You can make the mashed potatoes ahead of time and reheat them when you’re ready to serve.

Can I make it dairy-free?
Definitely! Substitute the butter and half & half with non-dairy alternatives, and you’re good to go!

Final Thoughts

These Best Ever Caramelized Onion Mashed Potatoes are not just a side dish; they are a celebration of flavors and comfort in every bite! Perfect for holiday dinners or cozy family nights, they’re bound to become a beloved staple in your kitchen. So roll up your sleeves and get ready to create a dish that will impress and delight everyone at your table! Happy cooking!

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Best Ever Caramelized Onion Mashed Potatoes

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Indulge in the ultimate comfort food with these Best Ever Caramelized Onion Mashed Potatoes. Creamy Yukon Gold potatoes are blended with rich, buttery caramelized onions and fresh herbs, creating a delightful side dish that elevates any meal. Perfect for Thanksgiving or any family gathering, these mashed potatoes are both satisfying and flavorful.

  • Author: XXXXX
  • Prep Time: 15 minutes
  • Cook Time: 75 minutes
  • Total Time: 1 hour 30 minutes
  • Yield: Serves 8
  • Category: Side Dish
  • Method: Boiling
  • Cuisine: American

Ingredients

Scale
  • 2 Tablespoons Olive Oil
  • 4 Yellow Onions (thinly sliced)
  • 2 Pounds Yukon Gold Potatoes (washed and chopped)
  • 4 Tablespoons Salted Butter
  • 3/4 Cup Half & Half or Full-Fat Coconut Milk
  • 1 Teaspoon Kosher Salt
  • 1 Cup Parmesan Cheese (freshly grated)
  • 1 Bunch Chives (thinly chopped)
  • 2 Sprigs Fresh Thyme (stems removed)
  • 3 Leaves Fresh Sage (chopped)

Instructions

  1. Heat olive oil in a skillet over medium heat. Add thinly sliced onions and cook, stirring occasionally, for 40-50 minutes until caramelized.
  2. In a separate pot, boil chopped Yukon Gold potatoes for about 20 minutes until fork-tender. Drain and mash.
  3. Combine mashed potatoes with butter, half & half, and kosher salt until smooth.
  4. Stir in half of the caramelized onions and grated Parmesan cheese.
  5. Transfer to a serving bowl, top with remaining onions, chives, thyme, sage, and melted butter.

Nutrition

  • Serving Size: 1 serving
  • Calories: 250
  • Sugar: 4g
  • Sodium: 512mg
  • Fat: 13g
  • Saturated Fat: 6g
  • Unsaturated Fat: 7g
  • Trans Fat: 0g
  • Carbohydrates: 26g
  • Fiber: 4g
  • Protein: 8g
  • Cholesterol: 24mg

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