Sliced Potatoes with Onions and Butter in Oven is one of those timeless comfort dishes that remind you of home. The beauty of this recipe lies in its simplicity just a few ingredients create something irresistibly delicious.
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Why You’ll Love This Sliced Potatoes with Onions and Butter in Oven Recipe
The thinly sliced potatoes soak up the melted butter, becoming tender on the inside while turning golden and crisp on the edges. The onions slowly caramelize as they bake, adding sweetness and depth that perfectly balance the creamy, buttery layers of potatoes. You don’t need fancy ingredients or complicated steps—just a sharp knife, a baking dish, and an oven.
This dish pairs beautifully with roasted meats, grilled chicken, or even as a vegetarian main served with a green salad. It’s also a great make-ahead side for holidays like Thanksgiving or Christmas, holding up wonderfully for reheating. Whether you’re serving guests or making a cozy dinner at home, sliced potatoes with onions and butter in oven brings warmth and nostalgia to the table. It’s affordable, comforting, and deeply satisfying, the kind of dish that turns simple ingredients into something extraordinary. Every bite delivers that rich buttery flavor and tender potato texture everyone loves, making it a staple recipe you’ll reach for again and again.
Quick Introduction to Sliced Potatoes with Onions and Butter in Oven
This sliced potatoes with onions and butter in oven recipe transforms humble ingredients into a golden, buttery, and aromatic side dish. Layers of tender potatoes and sweet onions bake together until perfectly soft inside and crisp around the edges. It’s easy, affordable, and always crowd-pleasing—a must-try for any home cook.
sliced potatoes with onions and butter in oven
Equipment
- Oven-safe baking dish (9×13-inch recommended)
- Sharp knife or mandoline slicer
- Cutting board
- Mixing bowl
- Aluminum foil
- Basting brush or spoon
Ingredients
- 4 large russet or Yukon gold potatoes thinly sliced (about ⅛-inch thick)
- 2 medium yellow onions thinly sliced
- 6 tablespoons unsalted butter melted
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon garlic powder optional
- 1 teaspoon dried thyme or rosemary optional
- 2 tablespoons chopped parsley for garnish
Instructions
- Preheat your oven to 400°F (200°C). Grease a 9×13-inch baking dish with butter or nonstick spray.
- In a large bowl, toss sliced potatoes and onions with melted butter, salt, pepper, and optional seasonings until evenly coated.
- Arrange half of the potato and onion mixture evenly in the baking dish.
- Drizzle a little extra butter over the first layer, then add the remaining potatoes and onions on top.
- Cover tightly with aluminum foil and bake for 30 minutes.
- Remove foil and continue baking for another 25–30 minutes, or until potatoes are golden, tender, and lightly crisp on the edges.
- Garnish with fresh parsley and serve warm.
Notes
Storage Options
- Refrigerate: Store leftovers in an airtight container for up to 4 days.
- Reheat: Bake at 350°F (175°C) for 10–15 minutes until warm and slightly crisp again.
- Freeze: Freeze baked portions for up to 2 months. Thaw overnight in the fridge and reheat before serving.
Tips for Success
- Use a mandoline slicer for consistent thickness and even cooking.
- Layer butter generously to prevent sticking and drying out.
- Let the dish rest 5–10 minutes before serving to allow layers to set.
- Cover with foil for the first part of baking to steam and soften the potatoes.
Additional Tips and Variations
- Cheesy Version: Add a layer of shredded cheddar or Swiss cheese halfway through baking.
- Herb Lovers: Mix in fresh rosemary, thyme, or chives for extra aroma.
- Creamy Option: Add ½ cup heavy cream or milk for a richer dish.
- Garlic Lovers: Add minced garlic between layers for stronger flavor.
Frequently Asked Questions (FAQ)
Can I prepare this dish ahead of time?
Yes. Assemble the layers up to a day in advance, cover tightly, and refrigerate. Bake just before serving.
Do I need to peel the potatoes?
Peeling is optional. Leaving the skin on adds texture and nutrients.
Can I use red potatoes?
Yes. Red potatoes hold their shape well and give a slightly waxier texture.
Why are my potatoes still firm?
They may need more baking time or were sliced too thick. Cover again with foil and bake until tender.
Can I add cheese?
Absolutely. Sprinkle grated cheese on top during the final 10 minutes of baking for a rich finish.
Conclusion
Sliced Potatoes with Onions and Butter in Oven is a timeless side dish that turns basic ingredients into pure comfort. With layers of tender potatoes, caramelized onions, and buttery richness, this simple recipe fits any occasion—from casual dinners to festive feasts. Once you try it, it’ll become a regular favorite in your home.