Pommes de Terre en Sauce Blanche
Boiled potatoes folded into a plain white onion sauce — a Friday and Lenten supper in Québec homes.

- Prep
- 10 min
- Cook
- 25 min
- Total
- 35 min
- Servings
- 4
- Difficulty
- Easy
- Calories
- 290 kcal
Equipment
- •Saucepan
- •Whisk
Nutrition
Per serving, approximate
- Calories
- 290 kcal
- fat
- 9 g
- carbs
- 44 g
- protein
- 8 g
- calories
- 290
Instructions
- 1
Boil the potatoes in salted water until just tender, then drain.
- 2
Melt the butter and cook the onion gently until translucent without colouring.
- 3
Stir in the flour and cook 2 minutes.
- 4
Whisk in the milk gradually and simmer until the sauce coats a spoon.
- 5
Season well, then fold the potatoes through and warm for 5 minutes.
- 6
Scatter with parsley and serve.
Chef's tips
Season the sauce more than feels right — potatoes flatten it quickly.
Ingredient substitutions
- milk → half milk and half potato cooking water for a lighter sauce
Storage
Keeps 2 days; loosen with milk when reheating.
Common mistakes to avoid
- •Lumpy sauce from adding milk too fast
Serving suggestions
Cooked Pommes de Terre en Sauce Blanche?
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