Potato and Brussels Sprouts Gratin | epicuricloud (Tina Verrelli)

Ingredients

• 4 cups thinly sliced (1/4") gold potatoes (see note)
• 1/3 cup thinly sliced onion
• 1 tablespoon oil
• 1/4 teaspoon salt
• 1/8 teaspoon pepper
• 1 tablespoon butter (cut into little pieces)
• 3 cups thinly sliced brussels sprouts (they will look shredded, see note)
• 1 cup finely shredded Asiago cheese (or Parmesan)
• 2/3 cup panko bread crumbs
• 2 tablespoons oil
• 1 cup heavy cream