Baked Purple Sweet Potato Recipe With Ginger & Garlic

If you’re looking for a baked purple sweet potato recipe that’s as gorgeous as it is delicious, you’re in the right place. These roasted purple sweet potatoes get tossed with a deeply savory mix of ginger, garlic, scallions, jalapeños, and shallots for a colorful side dish that feels special enough for the holidays but easy enough for a weeknight.

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As much as I enjoy indulgent potato side dishes like creamy mashed potatoes or crispy-topped twice baked potatoes, no one can deny the natural feel good flavor of the beauty queens that are purple sweet potatoes.

When I want something satisfying but also healthy I turn to this recipe. It’s naturally vegan, made with whole foods, and loaded with health benefits thanks to the vibrant color of purple sweet potatoes. That striking purple color comes from natural antioxidants that help support healthy blood sugar, are a good source of fiber, and pack vitamin C and vitamin A.

Serve them as a perfect side dish at your holiday dinner table or turn them into an easy veggie-centric entree with some creamy tahini sauce and blanched broccoli.

Looking for more vegan recipes? Check out these 17 vegan desserts!

Everything To Love About This Baked Purple Sweet Potato Recipe

• Taste: Sweet, earthy purple sweet potatoes meet nutty olive oil, fragrant garlic, and spicy jalapeños. The ginger and scallions add brightness that makes this feel way more exciting than your average baked potato or regular sweet potatoes.
• Texture: Roasting on a baking sheet gives you caramelized edges and tender centers, like purple sweet potato fries without the deep fryer. Tossing them in the warm ginger–garlic mixture at the end keeps everything glossy and satisfying.
• Ease: The oven does most of the work. While the potatoes roast, you quickly sauté the aromatics.

7 Simple Ingredients For These Potatoes

Have leftover scallions, garlic, jalapeños, and ginger? Use them to make my easy short rib pho recipe!

1. Purple sweet potatoes – The star. You can use Okinawan sweet potatoes, Japanese sweet potatoes with purple flesh, or other purple yams. Their unique color and low glycemic index make them a fun swap for regular potatoes or orange sweet potatoes in your favorite sweet potato recipes.
2. Olive oil – Helps the potatoes roast and carries all the flavors from the aromatics.
3. Garlic – Eight cloves may sound like a lot, but the garlic softens and sweetens as it cooks, adding deep savory flavor that plays beautifully with the natural sweetness of the potatoes.
4. Scallions – They bring a mild onion flavor and a fresh, green pop that keeps the dish from feeling heavy.
5. Jalapeños – Thinly sliced and seeded, they add just enough heat to balance the sweetness. If you’re sensitive to spice, you can use fewer or swap in a milder chile.
6. Shallots – Think of them as the elegant cousin of regular onions. They melt into the olive oil and add a gentle sweetness that makes this feel restaurant-worthy.
7. Fresh ginger – Cut into thin matchsticks, ginger brings warmth and a little zing. Cooked low and slow, it turns soft and mellow, adding layers of flavor you won’t get from basic purple sweet potato fries or purple sweet potato chips.

How To Make Them

Start like we do when roasting any vegetables, by heating your oven to 450°F and lining a baking sheet with parchment paper or aluminum foil for easy cleanup—always a good idea.

Peel your purple sweet potatoes and cut them in half vertically so they roast up tender inside without burning on the outside. Toss the potatoes with 3 tablespoons of olive oil, a generous pinch of salt, and freshly ground black pepper.

Spread them out in an even layer on the prepared baking sheet so they have space to brown instead of steam. Roast until they’re tender and caramelized on the edges; the exact cooking time will depend on how big they are, but plan on checking around the 25-minute mark.

While the potatoes roast, heat the remaining 3 tablespoons of olive oil in a large frying pan over medium heat. Add the garlic, scallions, jalapeños, shallots, and ginger. Season with another pinch of salt and pepper and cook until everything is fragrant, about 1–2 minutes.

Turn the heat down to low, and continue cooking until the ginger is soft, about 15–20 minutes more. You’re looking for meltingly tender aromatics that are glossy and just starting to turn golden in spots.

When the purple sweet potatoes are done, transfer them to a large bowl or serving platter and spoon the aromatics over the top. Finish with more salt to taste, a sprinkle of fresh herbs like fresh thyme if you have it, and serve hot.

Serving Ideas & Variations

These baked purple sweet potatoes are a delicious side dish for roasted chicken, salmon, or a simple main dish salad, but they’re also easy to turn into a full meal. My favorite way is for breakfast; I like to swap the bread for roasted purple sweet potato in this tomato and ham breakfast bruschetta.

If you love playing with different ways to cook potatoes, you can use this same flavor combo on regular sweet potatoes, orange sweet potatoes, or even regular potatoes. Try cutting them into wedges for crispy fries, or cube them and roast in a smaller baking dish. A spoonful of sour cream or a dairy-free yogurt on the side is never a bad idea either.

Why Purple Sweet Potatoes Are Worth Seeking Out

Purple sweet potatoes originally came from regions like South America and the Pacific and are now widely grown in Hawaii and Asia—think Okinawan purple sweet potato varieties. Their unique color isn’t just pretty; it signals those natural antioxidants that support overall health. Compared to some other starches, they have a relatively low glycemic index, which can be helpful for steady blood sugar when you pair them with healthy fats and fiber.

You’ll often find purple potatoes and Okinawan sweet potatoes at well-stocked local stores, Asian markets, or farmers’ markets, especially in the fall and winter. They’re becoming more popular and widely available—I found mine at Trader Joe’s!

However you track them down, once you bring that vibrant color to your dinner table, they might just become your new go-to for any special meal. Let me know what you think in the comments below!