how long to bake a sweet potato at 425

Bake whole sweet potatoes at 425°F for about 45–60 minutes, depending on size; halved or cubed pieces cook in roughly 25–40 minutes.

Quick Scoop: Timing at 425°F

• Whole medium sweet potatoes: about 45–60 minutes at 425°F, until a fork slides in very easily and they’re starting to ooze a bit of syrup.
• Large sweet potatoes: closer to the upper end, around 60 minutes.
• Halved lengthwise, cut-side down: about 25–30 minutes at 425°F, until fork‑tender.
• Cubed (about 1‑inch pieces): about 30–40 minutes at 425°F, tossed with a bit of oil, roasted until browned and tender.

A simple way to think of it: the thicker the potato, the closer you are to 1 hour; the more you cut it up, the closer you are to 30 minutes.

Mini How‑To (Whole Potatoes)

1. Preheat oven to 425°F.
2. Scrub potatoes, pat dry, and leave the skin on.
3. Prick each potato several times with a fork.
4. Place on a foil‑ or parchment‑lined baking sheet.
5. Bake 45–60 minutes, checking from 45 minutes on; they’re done when very soft all the way through.
6. Rest 5 minutes, then split, fluff the inside with a fork, and add toppings.

If you’re in a hurry, cutting them in half lengthwise and roasting cut‑side down is a great “weeknight shortcut” that often gets you soft, sweet results in about half the time of baking them whole.