Go Back

11) Sweet Potato Casserole with Caramelized Onions and Gruyère

Print Recipe
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings: 8 servings
Ingredients Method

Ingredients
  

  • 4 large sweet potatoes about 3 lb, peeled and cubed
  • 1 large yellow onion thinly sliced
  • 3 tbsp butter divided
  • 1/2 cup whole milk
  • 1 cup grated Gruyère
  • 1/2 tsp salt
  • 1/4 tsp black pepper
  • 1/4 tsp nutmeg
  • 1/2 cup panko breadcrumbs

Method
 

  1. Boil sweet potato cubes until tender, 15–20 minutes. Drain well.
  2. While potatoes cook, melt 1 tbsp butter in a skillet and cook onions low and slow until deep brown, 20–25 minutes. Stir now and then.
  3. Mash potatoes with milk, 2 tbsp butter, salt, pepper, and nutmeg until mostly smooth. Fold in half the Gruyère.
  4. Spread mashed potatoes in a 9x13 dish. Top with caramelized onions, remaining Gruyère, and panko mixed with 1 tbsp melted butter.
  5. Bake at 375°F (190°C) until bubbly and golden, 20–25 minutes. Let rest 5 minutes before serving.