French Onion Mashed Potatoes
These ultimate French Onion Mashed Potatoes are the perfect holiday side! They're won't be any left once your guest see these-creamy and perfect mashed potatoes with a crazy delicious topping!
Servings: 5 lbs.
Ingredients
For the Potatoes
- 5 lbs potatoes peeled and cut into chunks
- 5.2 oz. package Boursin cheese any flavor works
- 1 stick butter (½ cup)
- ½-1 cup sour cream
- ¼-½ cup milk use only if needed for thinning
- 1 tsp. salt
- 1 tsp. pepper
For the Onions
- 3 large onions thinly sliced
- 2-3 tbsp. butter
- pinch of salt
- 1-2 tsp. coconut aminos optional, for depth
For the Cheese
- 1-2 cups shredded cheese of choice see variations above for options!
Instructions
For the Onions
- Heat butter or oil in a large skillet over medium heat.
- Add the sliced onions and a pinch of salt.
- Cook low and slow for 25–35 minutes, stirring occasionally, until deep golden brown and soft.
- Optional: add coconut aminos during the last minute of cooking.
- Set aside.
For the Potatoes
- Bring a large pot of water to a boil.
- Add potato chunks to the water and cook 12-15 minutes or until fork-tender.
- Drain well and return potatoes to the pot.
- Add butter, Boursin, sour cream, and salt and pepepr. Mash until smooth.
- Add milk a splash at a time, only if you prefer to loosen the consistency.
- Adjust the salt and pepper to taste.
For the Cheese and Assembly
- Transfer mashed potatoes to a baking dish or serving dish that can go under the broiler.
- Spread caramelized onions evenly over the top.
- Sprinkle shredded cheese over the onions.
- Broil 1–3 minutes until the cheese melts and bubbles (watch closely!). Serve warm!
