Caramelized Onion and Potato Flan

Total Time
1hr 25mins
Prep 15 mins
Cook 1 hr 10 mins

5 ingredients and only 3 steps! This recipe was highly recommended by one of the nurses that I work with. It is an easy and elegant side dish from the Best of Bridge ladies. Excellent with ham or roast beef. Enjoy!

Ingredients Nutrition

  • 2 tablespoons butter
  • 2 large onions, thinly sliced
  • 6 -8 medium baking potatoes, peeled and thinly sliced
  • salt & freshly ground black pepper
  • 12-34 lb gruyere cheese or 12-34 lb emmenthaler cheese, grated


  1. In large frying pan over medium heat, saute onions in butter until deep golden brown, about 20 minutes. Cook slowly to caramelize.
  2. Grease a 9" x 13" or large round baking dish. Layer half the potatoe slices in a shingle fashion and season. Top with half the onions and cheese. Repeat next layer, ending with cheese.
  3. Bake at 350F for 50 minutes, or until potatoes are fork tender. Cut in squares or wedges to serve.
Most Helpful

I made a half recipe and cooked in an 8x8 pan and it took 40 minutes to cook at 170C fan forced and 3 of us thoroughly enjoyed the lot. Thank you Nif for a great side.

I'mPat December 06, 2010

Made this as one of several vegetable sides when my vegetarian son & DIL were over & it was a big hit with all! loved this particular onion & potato combo! The only thing I did differently was to leave the potato skins on! Thanks for sharing a great keeper of a recipe! [Made & reviewed in Went to the Market tag]

Sydney Mike April 29, 2011

Excellent!!! Loved these potatoes, as I am an onion lover and potato lover and the two of them together was wonderful. I served them with a marinaded flat iron steak and salad. Will definitely make this again. Thanks Nif for a wonderful new potato dish and was made for Potluck Tag!!!

diner524 April 11, 2009