1. Prepare the caramelized onions:
Heat the oil and butter in a frying pan over medium heat.
Add the sliced onions and fry gently for 15 to 20 minutes until golden and slightly caramelized. Set aside.
2. Assemble the gratin:
Preheat your oven to 180°C (gas mark 6).
In a gratin dish, place a layer of potatoes. Season with salt, pepper and sprinkle with thyme.
Add a layer of caramelized onions, then a little grated cheese.
Repeat the layers until you have used up all the ingredients, finishing with a generous layer of cheese.
3. Add the liquids:
Mix the crème fraîche and stock, then pour this mixture over the gratin. Shake the dish lightly to distribute the liquid evenly.
Crockpot Sweet and Sour Pork
Dessert in a glass dish: Recipe with only 4 ingredients, quick and easy to prepare
Sheet Pan Easter Dinner
Chocolate Trifle
Croque monsieur with bechamel sauce
Dirty mattress full of stains, the natural remedy to remove them
Easy Pistachio Lush
If you want a vigorous orchid with lots of bright leaves water it with this
Wash black clothes in the machine without bleaching them: the trick that not everyone knows!
