Deluxe Mashed Potatoes

These are to die for. Oh MAN. My mouth's watering for them right now.

Serves 6. Prep time: 25 minutes. Cooking time: 15-20 minutes.

2 tablespoons unsalted butter, divided
½ small yellow onion, chopped (about ½ cup)
½ cup nonfat sour cream
½ teaspoon dried thyme
½ teaspoon ground nutmeg (like I said, this is the best!!)
½ teaspoon white pepper (I used black and it tasted yummy; I wonder how it’d taste with white?)
¼ teaspoon salt
4 cups cooked mashed potatoes
¼ cup bread crumbs

1. Preheat oven to 350°. In a small skillet, melt 1 tablespoon butter over medium heat. Add onion; sauté until soft, about 5 minutes. Remove from heat.
2. Stir sour cream, thyme, nutmeg, pepper, and salt into skillet. Mix well.
3. In a medium bowl, combine mashed potatoes with onion mixture. Mix well. Spoon into a 1-quart casserole dish; smooth top.
4. Sprinkle bread crumbs over potato mixture and dot with remaining butter.
5. Bake potato casserole until heated through and top is golden, about 15-20 minutes. Serve immediately.