This is the ultimate survival dish my grandmother passed down to me on our little farm in the Midwest. When money was tight and the pantry was nearly bare, she could still turn three simple ingredients into a pan of crispy roasted magic that fed a crowd. Potatoes from the cellar, an onion from the garden, and a good glug of oil were all she needed. The potatoes come out with browned, crunchy edges, the onions melt into sweet caramelized ribbons, and everything glistens in the pan. It’s the kind of humble spring dinner that reminds you how far a few honest ingredients can go.
I like to serve these roasted onion potatoes straight from the aluminum pan, set in the middle of the table so everyone can help themselves. They’re lovely alongside baked or grilled chicken, a simple pork chop, or a skillet of fried eggs if you’re keeping it extra thrifty. In spring, I’ll add a bowl of lightly dressed salad greens or sliced cucumbers for something fresh and crisp. A spoonful of cottage cheese or a slice of sharp cheddar on the side feels very Midwestern and turns this into a satisfying, stick-to-your-ribs meal.
3-Ingredient Roasted Onion PotatoesServings: 4
Ingredients
2 pounds russet or Yukon Gold potatoes, scrubbed and cut into thick wedges
1 large yellow or white onion, peeled and thickly sliced
3 tablespoons vegetable oil or other neutral cooking oil, plus more for the pan
Directions
Heat your oven to 425°F (220°C). If you’re using an aluminum baking pan, set it on a sturdy baking sheet for easier handling. Lightly coat the bottom of the aluminum pan with a thin film of oil so the potatoes don’t stick.
Scrub the potatoes well under cool running water, removing any dirt and blemishes. Leave the skins on for flavor and texture. Pat them dry with a clean towel, then cut into thick wedges about 3/4 inch wide so they hold up to the high heat.
Peel the onion and slice it from root to stem into thick slices or wedges about 1/2 inch wide. You want them thick enough that they soften and caramelize without burning too quickly.
In a large bowl, combine the potato wedges and onion slices. Drizzle with the 3 tablespoons of oil. Use your hands or a big spoon to toss everything together until every piece has a light, shiny coat of oil. This helps them crisp and keeps the onions from drying out.
Spread the potatoes and onions in the oiled aluminum pan in an even layer. Try to keep most of the potatoes in a single layer, with the onions tucked in and around them. A little overlap is fine, but crowded potatoes will steam instead of crisp.
Place the pan on the middle rack of the preheated oven. Roast for 25 minutes without stirring so the bottoms can start to brown and crisp.
After 25 minutes, carefully pull out the pan and use a spatula to turn the potatoes and onions, scraping up any browned bits from the bottom. Spread everything back into an even layer and return the pan to the oven.
Continue roasting for another 20 to 30 minutes, stirring once more if needed, until the potatoes are deeply browned on the edges, tender all the way through when pierced with a fork, and the onions are soft, caramelized, and lightly charred in spots. The oil in the pan should be gently bubbling and the vegetables should look glistening and crisped.
Taste a potato wedge once it’s cool enough to handle. If it needs a touch more richness, you can drizzle a small spoonful of oil from the pan over the top and gently toss. Serve the potatoes and onions hot, right from the aluminum pan, letting everyone scoop out the crispy bits and sweet, soft onions.
Variations & Tips
If you’d like to stretch this dish a bit without changing its simple, survival-style spirit, you can add an extra potato or onion and a splash more oil, keeping the same basic ratio. For a slightly different feel, try red potatoes for a creamier interior or all Yukon Golds for a buttery flavor. You can also change the texture by cutting the potatoes into smaller chunks for more browned edges, or thicker wedges for a softer center. If you have access to different oils, each will lend its own character: vegetable oil keeps it neutral, canola or sunflower work well, and a bit of bacon fat mixed in (no more than a tablespoon or so) gives a smoky farmhouse touch. Leftovers reheat nicely in a hot skillet with just a drop of oil until they crisp again. For food safety, always scrub potatoes well to remove soil and any sprouts or green spots before cooking, and discard any potatoes that smell off or are very soft and shriveled. Cool leftovers promptly and refrigerate within 2 hours in a shallow container; reheat until steaming hot all the way through. Avoid leaving the cooked potatoes out at room temperature for long periods, especially in warm weather, to reduce the risk of bacterial growth.
