Potato Tomato Gratin – Sunday Suppers

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  1. Season the tomatoes with salt and pepper, set aside
  2. Saute the onions, salt and pepper on medium low heat in 4 T olive oil until the onions are deep brown, about 30 minutes
  3. Toss the potatoes with the thyme and cream
  4. Layer the onions, potatoes and tomatoes in a gratin pan and then repeat
  5. Pour the remaining cream from the potatoes and a little olive oil on top
  6. Cover the grain dish tightly with foil
  7. Bake two hours at at 350 degrees
  8. Turn the oven up to 450 degrees and remove foil
  9. Bake until top is golden brown, about 30 minutes