Roasted Carrot Ginger Soup Recipe

Overview

This roasted carrot ginger soup is smooth, warmly spiced, and easy to make without complicated ingredients. Roasting the carrots and onion first concentrates their sweetness and gives the finished soup more depth than simply simmering raw vegetables.

The soup is blended directly in the pot until silky, then finished with lemon juice to keep the flavor bright. Serve it as a light main course with crusty bread or as a starter alongside a sandwich, salad, or roasted vegetables.

Ingredients

• 2 pounds carrots, peeled and cut into 1-inch pieces
• 1 medium yellow onion, cut into 8 wedges
• 4 garlic cloves, peeled
• 3 tablespoons olive oil, divided
• 1 teaspoon kosher salt, plus more to taste
• ¼ teaspoon freshly ground black pepper
• 1 tablespoon finely grated fresh ginger
• 4 cups low-sodium vegetable broth
• 1 tablespoon fresh lemon juice
• ¼ teaspoon ground cumin, optional
• ½ cup heavy cream or full-fat coconut milk, optional
• Chopped fresh cilantro, parsley, plain yogurt, or toasted pumpkin seeds, for serving, optional

How to make it

1. Heat the oven and prepare the vegetables. Heat the oven to 425°F. Spread the carrots, onion wedges, and garlic cloves on a large rimmed baking sheet. Toss with 2 tablespoons of the olive oil, the salt, and black pepper. Arrange the vegetables in a single layer, leaving a little space between pieces so they roast instead of steam.

2. Roast until tender and browned. Roast for 30 to 40 minutes, stirring once halfway through. The carrots are ready when a fork slides into their thickest pieces with little resistance and the edges are browned. The onion should be soft with golden edges, and the garlic should be tender. If the carrots are soft but pale, roast them for another 5 minutes to develop more color.

3. Start the soup base. Warm the remaining 1 tablespoon olive oil in a large Dutch oven or soup pot over medium heat. Add the grated ginger and cook for 30 to 60 seconds, stirring constantly, until fragrant. Do not let it darken or stick to the bottom.

4. Add the roasted vegetables and broth. Transfer the roasted carrots, onion, and garlic to the pot. Pour in the vegetable broth and add the cumin, if using. Bring the mixture to a gentle simmer, then cook uncovered for 5 minutes. This short simmer loosens any browned bits and lets the ginger and roasted vegetables blend together.

5. Blend until smooth. Turn off the heat. Use an immersion blender to blend the soup directly in the pot until completely smooth, moving the blender around the bottom and sides. This usually takes 2 to 3 minutes. If using a countertop blender, cool the soup for several minutes, blend in batches, and remove the center cap from the lid. Cover the opening with a folded kitchen towel to let steam escape safely.

6. Adjust the texture and flavor. Stir in the lemon juice and the cream or coconut milk, if using. If the soup is thicker than you like, add warm broth or water ¼ cup at a time until it pours easily from a ladle. Taste and add more salt, pepper, or lemon juice as needed. Warm gently over low heat, but do not boil after adding cream.

7. Serve. Ladle the soup into warm bowls and finish with a small swirl of cream, yogurt, or olive oil. Add herbs or toasted pumpkin seeds for contrast. The soup should be pourable and velvety, with tender sweetness from the carrots and a noticeable but not harsh ginger finish.

Expert tips

• Cut the carrots evenly. Pieces close to 1 inch cook at the same rate. Very large pieces may remain firm in the center while thin pieces become overly dark.
• Use a wide baking sheet. Crowding traps steam and prevents the browned edges that give the soup its roasted flavor. Use two sheets if the vegetables are packed tightly.
• Control the ginger. One tablespoon gives the soup a clear, fresh ginger flavor. For a milder result, use 2 teaspoons; for more heat, add up to 1½ tablespoons.
• Fix a bitter or scorched taste. If only a few vegetable edges are very dark, discard those pieces before blending. If the bottom of the pot has burned, transfer the soup to a clean pot without scraping it.
• Fix soup that tastes flat. Add salt in small pinches first, then a little more lemon juice. Roasted carrots can taste overly sweet without enough salt and acidity.
• Choose a dairy-free finish. Full-fat coconut milk adds richness and a subtle coconut flavor. For a more neutral dairy-free soup, leave it out and add extra broth as needed.
• Make it chunkier if preferred. Reserve about 1 cup of roasted carrots before blending, chop them smaller, and stir them back into the finished soup.

For another roasted vegetable soup with a deeper squash flavor, compare the method with this roasted butternut squash soup recipe. If you prefer a creamy soup built around potatoes and leeks, try this creamy potato leek soup recipe.

Serving and storage

Serve the soup hot with toasted bread, a grilled cheese sandwich, or a simple green salad. It also works well as a starter before a roasted vegetable or grain-based dinner.

Cool leftovers promptly in a shallow container, then refrigerate in a covered container for up to 4 days. Reheat gently on the stovetop over medium-low heat, stirring occasionally. Add a splash of broth or water if the soup thickens in the refrigerator. Freeze cooled soup for up to 3 months in freezer-safe containers, leaving room for expansion. Thaw overnight in the refrigerator and stir well while reheating. If using cream, the texture may separate slightly after freezing; blend briefly or whisk as it warms to smooth it out.

Frequently asked questions

Can I make roasted carrot ginger soup without a blender?

Yes, but the soup will be less smooth. Mash the roasted vegetables well with a potato masher, then simmer them with the broth until very soft. For the smoothest texture without a blender, pass the soup through a fine-mesh sieve.

Can I use baby carrots for this soup?

Yes. Use 2 pounds of baby carrots and roast them whole if they are small, or halve thicker ones lengthwise. Check them after 25 minutes because their size can vary.

Why does my carrot soup taste too sweet?

Roasted carrots naturally become sweeter. Balance the soup with more lemon juice, a pinch of salt, or a small amount of extra vegetable broth. A little cumin or black pepper can also make the sweetness less dominant.

Can I use ground ginger instead of fresh ginger?

Yes. Replace the fresh ginger with ½ teaspoon ground ginger, adding it to the pot with the broth. The flavor will be warmer and less bright than fresh ginger.

Can I make this soup ahead of time?

Yes. Prepare it up to 4 days ahead and refrigerate it covered. Reheat gently and adjust the consistency with broth or water before serving.

More from FoodNotes

• roasted butternut squash soup recipe
• creamy potato leek soup recipe