Potato and two ham gratin (Slideshow version)

Potato and two ham gratin : Photo of step #26

Stage 1/6 : 1 min.

Preheat the oven to 200°C (390°F).

Prepare and chop the ½ onion.

Pour 2 tablespoons olive oil into a pan and when hot, add the chopped onion, salt and pepper. Cook for 1 minute.

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