Description
Potato Mousseline is a luxurious, creamy mashed potato dish made with Yukon gold or russet potatoes, enriched with butter, milk, and cream, then baked to perfection. This classic French-inspired recipe yields smooth, airy potatoes with a subtle cheesy melt and a fragrant garnish of fresh chives, making it an elegant side dish ideal for gatherings and special meals.
Ingredients
Potatoes and Seasoning
- 3 pounds Yukon gold or russet potatoes, washed, peeled, cut into 2-inch cubes
- 3-4 cloves garlic, whole, peeled
- Salt, to taste
- Freshly cracked white or black pepper, to taste
Dairy
- 6 tablespoons cold butter, cut into small pieces, divided
- ½ cup milk of choice, at or close to room temperature (whole milk preferred)
- 1 ½ cups heavy cream, at or close to room temperature
Optional
- ⅓ cup shredded gruyère, Swiss, comté, or mozzarella cheese
- Finely chopped fresh chives, for garnish
Instructions
- Preheat oven: Preheat your oven to 300° Fahrenheit to ensure it’s ready for the baking step later in the recipe.
- Boil potatoes and garlic: Place the cubed potatoes and whole garlic cloves in a large pot. Cover them with cold water, sprinkle a pinch of salt on top, and bring to a boil over medium-high heat. Once boiling, reduce heat to low and simmer for about 15 minutes or until the potatoes are easily pierced with a fork.
- Drain and dry: Drain the potatoes and garlic in a colander well. Return them to the warm pot off the heat to evaporate excess moisture and keep warm.
- Rice the potatoes: Using a potato ricer, press the cooked potatoes and garlic in batches into a large bowl. Add 3 to 4 pieces of butter during this process, totaling 5 tablespoons, and set the riced potatoes aside carefully to avoid overflow in the ricer.
- Warm the dairy: In a small pot over medium heat, warm the milk and heavy cream mixture for 3-4 minutes while whisking continuously to blend the ingredients without boiling.
- Combine potatoes with dairy: Gradually whisk the warm milk and cream into the riced potatoes, adding it slowly to create a smooth and fluffy texture. Season with salt and freshly cracked pepper to taste.
- Add cheese (optional): Fold in the shredded cheese gently with a silicone spatula until evenly incorporated, if using.
- Prepare baking dish: Place the remaining 1 tablespoon of butter evenly across the bottom of a baking dish to prevent sticking and add richness.
- Transfer and spread potatoes: Spoon the potato mixture into the baking dish, spreading evenly to cover the butter and fill all corners for uniform baking.
- Bake: Place the dish in the preheated oven and bake uncovered for 20 to 25 minutes until cooked through and slightly golden on top.
- Garnish and serve: Remove from the oven carefully, garnish with finely chopped fresh chives, and serve immediately for the best creamy texture and flavor.
Notes
- Using whole milk is preferred as it adds richness, but any milk of choice can be substituted.
- If you don’t have a potato ricer, a fine masher or food mill can be used, but texture may vary.
- The cheese is optional but adds a pleasant depth of flavor and creaminess.
- Ensure the dairy mixture is warmed but not boiled to avoid curdling and maintain smoothness.
- Yukon gold potatoes will give a creamier texture, while russets provide a fluffier mash.
