Amanda's potatoes au gratin

Amanda's potatoes au gratin


43 people made this

About this recipe: A gourmet twist on au gratin potatoes, I developed this show-stopping side dish with caramelised onions and fresh herbs.


Serves: 6 

  • 4 large onions, thinly sliced
  • 7 tablespoons light brown soft sugar
  • 110g butter
  • 6 large King Edward or Maris Piper potatoes, scrubbed and sliced
  • 250ml double cream
  • 2 sprigs fresh rosemary, chopped

Prep:20min  ›  Cook:1hr45min  ›  Ready in:2hr5min 

  1. Place onion, butter and brown sugar into a large frying pan over low heat. Cook, stirring occasionally, until the onions have caramelised, about 45 minutes.
  2. Preheat the oven to 180 C / Gas 4. Lightly grease a 20x30cm baking dish with butter.
  3. Place a single layer of potato slices in the bottom of the prepared baking dish. Cover with a thin layer of onions. Drizzle some of the cream, and sprinkle some of the rosemary over the layer. Repeat layers four times ending with onions, cream and rosemary.
  4. Bake for 1 hour in the preheated oven, or until top potatoes are golden brown and sauce is bubbling.

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Reviews (2)


Made this yesterday! Best au gratin potatoes I have ever had! I didn't have double cream so I used condensed milk instead. Delicious! - 22 Mar 2015


This sounds absolutely gorgeous with the caramelised onions in - I'll have to try it! - 10 May 2010

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