European Kitchen - 259

Chicken and potato gratinVegetable oil6 sweet potatoes, cut into thin circles6 chicken breasts, cut into cubes1 finely chopped onion1/4 cup chopped shallot2 garlic cloves1 cup of cornFor non-thick bechamel2 tablespoons of butter2 tablespoons of flour2 cups of milk2 cups of creamA little garlic powder1/2 cup grated parmesan cheese1/2 cup mozzarella cheeseSalt and PepperA pinch of nutmegDried thymeGarlic powder