Potatoes Au Gratin Packets

Ingredients (9)

• 4 pounds new potatoes, sliced thin or cubed
• 2 cups heavy cream
• 2 shallots, chopped
• 4 cloves garlic, chopped
• 2 teaspoons kosher salt
• 1 tablespoon black pepper
• 1 teaspoon dried thyme
• 1/2 teaspoon red pepper flakes
• 4 oz. Fontina or Gruyere, grated