Before you start preparing to turn on the oven temperature to be taken, we put it at 180 degrees
Peel the potatoes and cut into thin slices. We put a little oil and salt and make them in the microwave for about ten minutes. Place them in the baking dish
Add salt and pepperto taste the golden inside, we make some cuts on the back so that they become better inside when brought them to the oven. Put each cut a slice of lemon
We put the golden fountain next to the potatoes, and we water with a little oil, a splash of beer, salt and pepper to taste
We put the tray in the oven and leave for half an hour. When we remove pochadita add the onion and serve.