All About Sweet Potato
Sweet potatoes bring natural sweetness and creamy texture to everything from soups to tacos. These orange-fleshed tubers cook faster than regular potatoes, turning silky at 205°F internal temperature. They work equally well roasted until caramelized, mashed into purees, or diced into hearty stews. A medium sweet potato weighs about 5 ounces and contains 103 calories.
How to Select
Choose firm sweet potatoes with smooth, taut skin and no soft spots. A good one feels heavy for its size, around 5-8 ounces for medium. Avoid any with wrinkled skin, dark spots, or sprouts. Small cracks near the ends are fine. The skin color ranges from tan to deep red-brown depending on variety.
How to Store
Keep unwashed sweet potatoes in a cool, dark spot around 55-60°F for up to 10 days. Never refrigerate raw ones. The cold converts their starch to sugar too quickly. Store in a basket or paper bag with good air circulation. Once cut, wrap tightly in plastic and refrigerate for 3-5 days. Cooked sweet potatoes last 3-4 days refrigerated in an airtight container.
How to Prep
Scrub under cold water with a vegetable brush. Peel with a Y-peeler if desired, though the skin is edible and adds fiber. Cut into 3/4-inch cubes for even roasting in 25-30 minutes at 425°F. For mashing, slice into 2-inch rounds that cook through in 15 minutes of boiling. Grate raw sweet potato on a box grater for fritters or adding to batters.
Flavor Pairings
Sweet potatoes love warm spices like cinnamon, cumin, and smoked paprika. They balance beautifully with salty elements like feta or bacon. Black beans and sweet potatoes appear together in Mexican bowls and burritos. Sage butter complements their sweetness in ravioli fillings. Coconut milk smooths their texture in soups.
Cooking Tips
Roast at 425°F for 25-30 minutes, flipping once halfway through for golden edges.
Pierce whole potatoes 6-8 times before baking 45-60 minutes at 400°F.
Add 1 tablespoon butter per pound when mashing for silkier texture.
Toss cubed sweet potatoes with 1 tablespoon oil per pound before roasting.
Varieties
Need a substitute? See our Best Substitutes for Sweet Potato guide with tested ratios.
FAQ
Can I substitute sweet potatoes for regular potatoes?
Yes, but adjust cooking times. Sweet potatoes cook 20-30% faster than russets due to higher sugar content. They get mushy quicker in soups, so add them 10 minutes later than regular potatoes. For mashing, they need less liquid since they're already moist. Use 2 tablespoons milk per pound versus 1/4 cup for regular potatoes.
Why did my roasted sweet potatoes turn out soggy?
Overcrowding causes steaming instead of roasting. Space cubes 1/2 inch apart on the baking sheet. Your oven temperature might be too low. Crank it to 425°F minimum. Also check your cube size. Anything larger than 1 inch won't crisp properly. The interior reaches 205°F before the outside caramelizes. Pat cubes completely dry before tossing with oil.
Should I wrap sweet potatoes in foil when baking?
Skip the foil if you want crispy skin. Foil traps steam, making the skin soft and the flesh watery. Bake directly on the oven rack at 400°F for 45-60 minutes. Place a sheet pan below to catch drips. The skin should feel crispy and the potato should give slightly when squeezed with a towel.
How do I prevent sweet potatoes from turning brown after cutting?
Submerge cut pieces in cold water immediately. They'll stay bright orange for up to 24 hours refrigerated in water. For longer storage, add 1 teaspoon lemon juice per quart of water. Drain and pat completely dry before cooking. The browning is just oxidation, similar to apples. It doesn't affect flavor but looks less appealing.
Recipes with Sweet Potato
BBQ Sweet Potato Taco Bowls with Crispy Tortilla Chips
50 min
Buffalo Chicken Soup with Sweet Potato
40 min
Roasted Vegetable and Millet Bowl
50 min
Roasted Vegetable Tomato Soup with Coconut Cream
55 min
Sweet Potato Ravioli with Sage Brown Butter
1 hr 26 min