Equipment
* optional
Ingredients
The Potatoes
- 1000 g yukon gold potatoes, peeled and cut into 3cm uniform cubes
- 15 g fine sea salt
The Infusion
- 180 ml whole milk, room temperature
- 30 g unsalted butter, cubed, cold
- 1 g black pepper, freshly cracked
- nutmeg, freshly grated
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 309 kcal
- Protein
- 8 g
- Carbohydrates
- 55 g
- Fat
- 8 g
- Fiber
- 9 g
- Sugar
- 6 g
- Sodium
- 1521 mg
- Saturated Fat
- 5 g
- Monounsaturated Fat
- 2 g
- Polyunsaturated Fat
- 0 g
- Cholesterol
- 21 mg
- Potassium
- 1674 mg
- Calcium
- 89 mg
- Iron
- 1.9 mg
- Magnesium
- 115 mg
- Phosphorus
- 274 mg
- Zinc
- 0.2 mg
- Vitamin A
- 72 mcg
- Vitamin C
- 53 mg
- Vitamin D
- 0.6 mcg
- Vitamin E
- 0.2 mg
- Vitamin K
- 1 mcg
- Vitamin B6
- 0.0 mg
- Vitamin B12
- 0.2 mcg
- Thiamin
- 0.02 mg
- Riboflavin
- 0.08 mg
- Niacin
- 0.1 mg
- Folate
- 3 mcg
- Water
- 41 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
Place the cubed potatoes in a large saucepan and cover with cold water by at least 3cm. Add 12g of sea salt. Starting with cold water ensures the potatoes cook evenly from edge to center.
Bring the water to a boil over high heat, then reduce to a simmer. Cook for approximately 20-25 minutes until the potatoes are completely tender and offer no resistance when pierced with a paring knife.
While potatoes cook, combine the milk, nutmeg, and half the butter in a small saucepan. Heat to 70°C (158°F) until simmering, then keep warm on the lowest setting.
Drain the potatoes thoroughly. Return them to the hot, empty saucepan over low heat for 2 minutes, shaking the pan constantly to 'steam dry' the tubers. This removes residual moisture, allowing them to absorb more milk.
Working quickly while the potatoes are hot, pass them through a ricer into a clean bowl. For a true Michelin finish, immediately push the riced potatoes through a fine-mesh sieve or tamis using a spatula.
Gently fold in the warm milk mixture and the remaining cold butter using a silicone spatula. Stir until just combined and silky. Season with the remaining salt and cracked pepper.
Chef's Notes
- The temperature of the potatoes during ricing is critical. If they cool, the starch crystallizes and the texture becomes grainy.
- Using cold butter at the very end helps create a stable emulsion, resulting in a glossier finish.
Storage
Refrigerator: 3 days — Store in an airtight container with plastic wrap pressed directly against the surface to prevent a skin from forming.
Freezer: 1 month — Texture may become slightly grainy upon thawing; re-emulsify with a splash of warm milk.
Reheating: Warm gently over a double boiler or in a saucepan over low heat, whisking in 15-30ml of warm milk to restore the silky texture.
Troubleshooting
Gummy or gluey texture
Cause: Potatoes were overworked or processed in a blender/food processor.
Fix: Cannot be fixed; repurpose as a base for potato pancakes or croquettes.
Prevention: Always use a ricer or food mill; never use high-speed blades.
Lumpy purée
Cause: Potatoes were undercooked or cooled down too much before ricing.
Fix: Pass the entire mixture through a fine-mesh sieve.
Prevention: Ensure potatoes are fork-tender and rice them while they are steaming hot.
Cultural Context
This recipe is a lighter take on the classic 'Pommes Purée' made famous by Joël Robuchon, which traditionally uses a 1:2 ratio of butter to potatoes.
