Sweet Potato Gratin with Carmelized Onion

Ingredients

• ¹/₈ teaspoon(s) cayenne pepper
• 2 tablespoon(s) parmesan cheese - grated
• 4 tablespoon(s) unsalted butter
• 2 pound(s) onion - yellow, thinly sliced
• 1 cup(s) pecans
• 4 pound(s) sweet potatoes - peeled, cut into ¹/₈" thick slices
• salt and pepper to taste
• + 6 more ingredients
• • 3 sprigs fresh thyme
  • ½ teaspoon(s) leaf sage - crumbled
  • ¼ teaspoon(s) cinnamon
  • ¼ teaspoon(s) nutmeg
  • 2 cup(s) half-n-half
  • 2 tablespoon(s) Italian bread crumbs

Heat butter in large skillet over medium heat. Add onions, reduce heat to medium low and cook; stirring occasionally. Cook until onions are soft and nicely browned, 30-40 minutes. Season with salt and pepper. Remove from heat, set aside to cool slightly. Meanwhile, whisk together half-n-half, thy...

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