How to Boil Sweet Potatoes
Boiling sweet potatoes seems simple, but starting them in hot water or cutting the pieces unevenly leads to a mushy outside and a raw center. A few adjustments to cut size and water temperature fix that every time.
Steps
- 1Peel the sweet potatoes if you want smooth mashed sweet potatoes, or leave the skin on for salads and firmer pieces.
- 2Cut the sweet potatoes into evenly sized chunks, about 1 to 1.5 inches, so they cook at the same rate.
- 3Place the chunks in a pot and cover with cold water by about an inch.
- 4Add a generous pinch of salt to the water.
- 5Bring the pot to a boil over high heat, then reduce to a simmer.
- 6Simmer uncovered for 15-20 minutes, until a fork slides into a piece with almost no resistance.
- 7Drain immediately in a colander to stop the cooking and prevent waterlogging.
Common mistakes
- Starting with boiling water instead of cold: this cooks the outside before the inside softens, leaving uneven texture.
- Cutting pieces in different sizes: smaller chunks turn to mush while larger ones stay firm in the same pot.
- Boiling too long or at a hard rolling boil: the pieces break apart and absorb excess water, watering down flavor.
- Skipping the salt in the boiling water: sweet potatoes taste flat without seasoning added during cooking, not just after.
Equipment
- Large pot
- Colander
- Paring knife or peeler
- Fork for testing doneness
FAQ
Should I peel sweet potatoes before boiling?
Peel them if the goal is smooth mashed sweet potatoes; leave the skin on for potato salad or roasted-style side dishes where a bit of chew is fine, and peel it off after boiling instead, since the skin slips off easily once cooked.
How long does it take to boil whole sweet potatoes?
Whole, unpeeled medium sweet potatoes take about 35-45 minutes at a simmer, since the interior takes much longer to heat through than cut chunks.
Why are my boiled sweet potatoes watery?
Overcooking or boiling at too vigorous a heat forces water into the flesh; simmer gently and drain the moment a fork meets no resistance.
Can I boil sweet potatoes ahead of time?
Yes, boiled chunks keep in the refrigerator for up to 4 days in an airtight container; reheat gently in a pan or microwave before mashing or serving.
Need exact temperatures or timing? Check our Time & Temperature Guide →
