Photo of Potatoes au Gratin by WW

Potatoes au Gratin

Points® value
Total Time
1 hr 30 min
10 min
1 hr 20 min
We used whole milk for extra creaminess but the dish is still light. Extra-sharp low-fat Cheddar is key for fantastic flavour.



2 tsp(s)

Spanish onion

1 large, halved and thinly sliced

Yukon gold potato

2 cup(s), washed and thinly sliced

Table salt

1 tsp(s)

Black pepper

¼ pinch(es)

Ground nutmeg


Whole milk

2 cup(s)

Low-fat shredded cheddar cheese

4 oz, extra sharp-variety


  1. Preheat oven to 350°F. Coat a 9- X 13-inch glass baking dish with cooking spray.
  2. Generously coat a large pot with cooking spray; heat over medium heat. When hot, melt butter. Add onion to pot; cook, stirring occasionally, until onion starts to turn translucent and caramelize, about 10 minutes.
  3. Add potatoes, salt, pepper, nutmeg, milk and cheese to pot; toss several times to coat each slice of potato. Bring to a boil and cook, stirring occasionally, until sauce thickens enough to coat the back of a spoon, about 5 minutes.
  4. Pour potato mixture into prepared pan; bake until top is golden and potatoes are tender, about 45 minutes to 1 hour. Slice into 8 pieces and serve. Yields 1 piece per serving.