- Preheat oven to 400 ° F
- Butter generously 6 ramekins.
- Arrange the sliced potatoes in a thin layer at the bottom of each mold and on the side as well.
- Cover with slices of onions, then again with potatoes and a new layer of onions. Do not forget to salt, pepper and add finely chopped rosemary between each layer.
- Pour 1 tbsp white wine in each ramekin. Add a nice knob of butter.
- Cover with a final layer of potatoes.
- Cover each ramekin with aluminum foil.
- Bake for 30 minutes.
- Unmould the timbale gently and return to the oven for 10 minutes, pouring on each timbale a drizzle of olive oil so that they lightly brown.
- Serve without further delay with a good salad!