Lick My Spoon | Sweet Potato Gratin Recipe

Ingredients

• 4 pounds sweet potato
• 2 pounds onions
• 4 tablespoons unsalted butter
• 2 cups heavy cream
• 2 tablespoons fresh thyme, roughly chopped
• 1 teaspoon salt
• 1 teaspoon black pepper
• ¼ teaspoon cayenne pepper
• 1 cup panko bread crumbs
• 1 cup pecans, chopped
• ¼ cup grated Parmigiano
• Olive oil for drizzling