2poundspotatoeswashed, dried, and cut into ¾ to 1-inch chunks (skins on)
1medium onioncut into ½-inch pieces
½red bell peppercut into ½-inch pieces
½green bell peppercut into ½-inch pieces
¼cupbuttermelted (or lard, tallow, or neutral high-smoke-point oil)
1teaspoonsalt
1teaspoonblack pepper
Instructions
Preheat your oven to 450°F.
Cut the potatoes into ¾ to 1-inch chunks, leaving the skins on.
In a large bowl, combine potatoes, onion, and bell peppers.
Add melted butter or fat of choice and toss to coat. Optional: melt fat directly on the sheet pan in the oven for 2–3 minutes, then toss everything on the hot pan.
Spread the mixture in a single layer on a rimmed sheet pan. Do not overcrowd.
Roast for 30 minutes, flipping once halfway through, until potatoes are golden, crisp, and fork-tender.
Season with salt and pepper before serving.
Notes
Leave the skins on — they add texture and crunch.
For maximum crispiness, make sure potatoes are fully dried before roasting and not touching on the pan.
Lard or beef tallow can be substituted for butter for an even crispier result.
Store leftovers in an airtight container for up to 4 days. Reheat in the oven or air fryer to restore crunch.