Best Substitutes for Sweet Potatoes
Sweet potatoes bring three things to your cooking: natural sweetness (about 4-6 grams of sugar per 100g), a creamy texture when cooked, and bright orange color from beta-carotene. They're 77% water and 20% carbs, mostly starch that converts to sugar when heated.
The right substitute depends on what you're making. Roasted sweet potato wedges need something that caramelizes. Sweet potato pie needs smooth puree texture. Soups and stews just need that earthy sweetness.
Butternut squash matches the sweetness and color almost perfectly. Regular potatoes work but need sugar added. Carrots bring sweetness but cook differently.
Best Overall Substitute
Butternut squash at a 1:1 ratio by weight. It has the same natural sweetness (about 2.2g sugar per 100g raw), similar starch content, and cooks to the same creamy texture. The orange color matches perfectly. Works in 90% of sweet potato recipes without any adjustments.
All Substitutes
Butternut squash
1:1 by weightButternut squash has similar water content (86% vs sweet potato's 77%) and natural sugars. It roasts in the same time at 425F (about 25-30 minutes for 1-inch cubes). The texture gets just as creamy when mashed. One medium butternut squash (about 2 pounds) equals 3 medium sweet potatoes. Peel with a sharp knife, not a vegetable peeler.
Yukon gold potatoes
1:1 plus 1 tablespoon sugar per poundYukon golds have a naturally buttery texture and slight sweetness. They're 79% water, close to sweet potatoes. Add 1 tablespoon brown sugar or maple syrup per pound to match sweetness. They crisp up better than sweet potatoes when roasted, getting golden at 425F in 20 minutes. Won't provide the orange color or vitamin A.
Carrots
1.5:1 by weight (use 50% more carrots)Carrots have concentrated sweetness (4.7g sugar per 100g) but less starch. Use 1.5 pounds carrots for every 1 pound sweet potatoes. They cook faster - only 15-20 minutes at 425F for roasting. For purees, simmer 20 minutes until fork-tender. The texture is less fluffy, more dense. Add 2 tablespoons cream per cup of puree to match creaminess.
Pumpkin puree (canned)
1:1 for puree recipes, won't work for chunksCanned pumpkin matches mashed sweet potato exactly in texture and sweetness. One 15-ounce can equals about 2 cups or 1.5 pounds fresh sweet potatoes. The moisture content is lower (90% vs 77%), so add 2 tablespoons water per cup in baking. Only works for recipes calling for mashed or pureed sweet potato.
Russet potatoes
1:1 plus 2 tablespoons sugar per poundRussets are starchier and drier than sweet potatoes (79% water vs 77%). They need more sugar compensation than Yukons. Add 2 tablespoons brown sugar per pound, plus 1 tablespoon butter for moisture. They get fluffier when mashed and crispier when roasted. Cook 5-10 minutes longer at the same temperature.
Acorn squash
1:1 by weightAcorn squash has mild sweetness (about 4g sugar per 100g) between butternut and sweet potato. The flesh is stringier, not as smooth. Roast at 400F for 35-40 minutes, slightly longer than sweet potatoes. Works best cut into half-moons with skin on. The green skin adds nice color contrast. Harder to peel than butternut.
Kabocha squash
1:1 by weightKabocha is the sweetest squash option (about 5g sugar per 100g). The texture is drier and flakier than sweet potato, almost like chestnuts. No need to peel - the skin softens completely when cooked. Roasts in 30 minutes at 425F. One small kabocha (2-3 pounds) replaces 3-4 sweet potatoes. Cut with a heavy knife after microwaving 2 minutes to soften.
Parsnips
1:1 plus honey glazeParsnips get sweeter when roasted (about 4.8g sugar per 100g after cooking). They're white, so no orange color. The texture is between carrots and potatoes. Roast at 425F for 25 minutes. Toss with 1 tablespoon honey per pound after roasting to boost sweetness. They caramelize beautifully, getting crispy edges.
How to Adjust Your Recipe
Sweet potatoes cook differently than regular potatoes. They have more sugar, so they brown faster. Lower oven temperature by 25F when using regular potatoes as substitutes.
For roasting, cut substitutes the same size as you would sweet potatoes (usually 1-inch cubes). Most cook in 25-35 minutes at 425F. Test with a fork at 20 minutes.
In soups and stews, sweet potatoes break down after 30-40 minutes of simmering. Butternut squash behaves the same way. Regular potatoes and carrots hold their shape better, so add them later if you want chunks.
For purees, sweet potatoes don't need added liquid. Substitutes might. Add 2-4 tablespoons cream or broth per cup of puree to match the creamy texture.
When Not to Substitute
Sweet potato pie needs actual sweet potatoes. The specific balance of starch, sugar, and moisture creates the right texture. Substitutes make it grainy or watery.
Sweet potato gnocchi relies on the exact starch content. Other vegetables make gummy or falling-apart dumplings.
Twice-baked sweet potatoes need the skin to hold their shape. Squash skins are too hard or too soft.
Candied sweet potatoes need the firm-but-tender texture that only sweet potatoes achieve. Squash gets mushy. Regular potatoes stay too firm.
Frequently Asked Questions
Can I use yams instead of sweet potatoes?
True yams are completely different - starchier, drier, and not sweet. What stores label as yams are usually orange sweet potatoes. Use those at 1:1. Real yams (white, purple, or yellow flesh, rough brown skin) need 2-3 tablespoons sugar per pound and cook 10-15 minutes longer. They're 70% water vs sweet potato's 77%, so they're much drier.
How do I substitute for sweet potato fries?
Butternut squash fries work but get softer. Cut into 1/2-inch sticks, toss with cornstarch (1 tablespoon per pound) for crispness. Bake at 450F for 20-25 minutes, flipping once. Yukon gold potatoes make crispier fries - soak cut fries in cold water 30 minutes first, then dry completely. Regular carrots cut into thick sticks work too, ready in 15-18 minutes.
What's the best substitute for sweet potato in smoothies?
Use 1/2 cup canned pumpkin or butternut squash puree per medium sweet potato. Steam and freeze butternut squash cubes for easy smoothie prep. Cooked carrots (1/2 cup) work but taste more vegetal - add 1 tablespoon maple syrup. For raw smoothies, use 1/3 cup soaked cashews plus 1 medjool date for similar creaminess and sweetness.