How Long to Bake a Sweet Potato at 400

5 from 3 votes

How long to bake a sweet potato at 400 with foil to tender and fluffy. We will show you how to bake sweet potatoes perfectly in the oven.

Prep Time5

Cook Time45

Course: Appetizer, Side Dish

Cuisine: American

Keyword: baked, fluffy, oven, sweet potatoes

Servings:

Author: The Typical Mom

Wash outside of skins and dry with paper towels. Preheat oven to 400 F. Use a fork or knife to stick potato 6-10 times all the way around to allow steam to vent out.
Place inside a casserole dish or on a baking sheet. Cover with foil and bake for 45 minutes - 1 hour 15 minutes depending on how large they are. Test at 45 minutes with a fork or knife. Insert into the center of each one, should be easy to slide in and out showing it is tender.
If you want crispy outer skin, remove foil once tender. Brush olive oil on top and all sides. Sprinkle sea salt all over and set to broil for 2-3 minutes or until outside is as crispy as you'd like.
Slice in the middle, fluff insides and add butter, cinnamon and sugar, and can even put mini marshmallows inside. If you want those browned you'd want to fill before broiling so they can brown and melt.