Description
Craving a cozy, crowd-pleasing side dish with serious flavor? These **Twice Baked French Onion Mashed Potatoes** combine the creaminess of mashed potatoes with sweet, golden caramelized onions and melted Gruyère cheese. Perfect for a holiday table or easy dinner upgrade, this easy recipe turns humble ingredients into something extraordinary. Whether you’re hunting for **quick comfort food**, **Thanksgiving dinner ideas**, or **easy side dish recipes**, this one delivers. Creamy, cheesy, and savory-sweet — it’s everything you love about French onion soup in baked potato form.
Ingredients
3 lbs Yukon Gold potatoes
2 tablespoons olive oil
2 large yellow onions, thinly sliced
1–2 garlic cloves, minced (optional)
4 tablespoons butter
1/2 cup heavy cream (warm)
1 teaspoon salt
1/2 teaspoon black pepper
1 cup shredded Gruyère cheese (divided)
Fresh thyme or parsley, chopped (optional garnish)
Instructions
1. Slice onions thinly and cook them in olive oil over medium-low heat for 30–40 minutes until deeply caramelized. Stir often and add garlic during the last 5 minutes if using.
2. Peel and cut potatoes. Boil in salted water for 15–20 minutes until fork-tender. Drain and return to the pot.
3. Add butter, warm cream, salt, and pepper to the potatoes. Mash until creamy and smooth. Adjust seasoning as needed.
4. Preheat oven to 375°F (190°C). Fold in half the Gruyère and two-thirds of the caramelized onions into the mashed potatoes.
5. Transfer mixture to a greased baking dish. Top with remaining onions and cheese.
6. Bake uncovered for 20–25 minutes until the top is golden and bubbling.
7. Let rest for 5 minutes, garnish with herbs, and serve warm.
Notes
Use Yukon Gold potatoes for a naturally buttery texture.
Don’t rush the onion caramelization — low and slow is key for depth of flavor.
Warm cream and butter help keep the mash from getting gummy.
Nutrition
- Serving Size: 1 cup
- Calories: 320
- Sugar: 5g
- Sodium: 340mg
- Fat: 17g
- Saturated Fat: 10g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 3g
- Protein: 8g
- Cholesterol: 45mg
Keywords: French onion mashed potatoes, easy holiday side, baked mashed potatoes