Chicken Gratin - Cook with Sousou

Ingredients

• 1 big onion, cut into small cubes
• 200 g sweet corn
• 1 cup uncle ben’s rice
• 1 ¼ cups water
• salt and ground black pepper
• salt to taste
• ¼ teaspoon nutmeg
• ½ teaspoon white pepper
• 300 ml fresh cream
• 6 cups skimmed milk
• 2 tablespoons flour
• 20 g butter
• 1 grilled chicken breast, cut into pieces
• 200 g sliced mushrooms (canned)
• 4 slices ham, cut into small cubes
• 100 g mozzarella cheese
• 50 g cheddar cheese