55 min
Roasted Sweet Potato Ginger Soup
Velvety roasted sweet potato soup with ginger, warm spices, lime, and crunchy pepitas.

Photo: James Hardman / Unsplash · Unsplash License
Vegetarian Dinners
Roasted pumpkin, warm cardamom and a savory vegetable base blend into a velvety autumn soup finished with tangy lime crema, toasted pepitas and optional chile flakes.
Heat the oven to 425°F. Line a rimmed sheet pan with parchment. Set each pumpkin half cut-side down on a stable board and cut it into three wedges; leave the skin on so the firm squash is easier to handle. Rub the cut surfaces with 1 tablespoon oil and season with 1/2 teaspoon salt.
Arrange the wedges cut-side down and roast for 35 to 40 minutes, turning once after 25 minutes, until browned at the edges and a spoon slides easily through the flesh. Cool for 5 minutes, then scoop 4 packed cups of flesh from the skin. Do not use any hard or fibrous stem end.
While the pumpkin roasts, heat the remaining 1 tablespoon oil in a 5- to 6-quart Dutch oven over medium. Add the onion, carrot and 1/2 teaspoon salt. Cook for 7 to 8 minutes, stirring often, until softened. Add the garlic, ginger, cumin, coriander, cardamom and cinnamon; stir for 45 seconds, just until fragrant.
Add the scooped pumpkin, vegetable broth and maple syrup. Bring to a boil, then reduce to a steady simmer and cook uncovered for 8 minutes, stirring twice, so the roasted flesh and aromatics become fully tender and the flavors combine.
Remove the pot from the heat. Use an immersion blender with its head fully submerged and blend until completely smooth, 1 to 2 minutes. For a countertop blender, cool the soup for 10 minutes, work in small batches, remove the center cap, cover the opening with a folded towel and begin on low; never seal hot soup in the jar. Return the soup to low heat and thin with extra broth, 1/4 cup at a time, if needed.
Whisk the yogurt with 1 tablespoon lime juice and 1 tablespoon cool water until pourable. Stir the remaining 1 tablespoon lime juice and 1/2 teaspoon salt into the hot soup, then taste before adding more salt. Toast the pepitas in a dry skillet over medium for 3 to 4 minutes, shaking often, until they pop and smell nutty. Ladle into six bowls and finish with lime crema, pepitas, cilantro or microgreens and optional red pepper flakes.
Useful kitchen gear
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Cool the soup in shallow containers and refrigerate within 2 hours. Store the soup, crema and pepitas separately: the soup keeps up to 4 days, the crema up to 3 days and the pepitas airtight at room temperature for 1 week. Reheat only the soup over medium-low, stirring often, until it reaches 165°F; loosen with broth as needed. Freeze the soup without toppings for up to 3 months, thaw overnight in the refrigerator and blend briefly after reheating if it separates.
Yes. Make and chill the soup up to 3 days ahead, but keep the crema, pepitas and herbs separate. Reheat the soup gently to 165°F, adjust its thickness with broth and add the toppings only after ladling so they stay distinct.
Some pumpkins have more fibrous flesh, especially near the stem. Scoop only tender roasted flesh, blend for the full 1 to 2 minutes and, for an extra-silky result, press the blended soup through a fine-mesh sieve before the final lime and salt adjustment.
Not at this quantity. Half a teaspoon across six servings adds warm citrus-floral aroma, while onion, garlic, cumin, coriander and vegetable broth keep the soup savory. Do not substitute an equal amount of whole pods without grinding and measuring the seeds.