Ginger carrot soup: a simple onion-free recipe

Most soup recipes start the same way: chop an onion, add some garlic. This one doesn't. Fresh ginger, cumin and a squeeze of citrus do the work instead, which makes it a useful recipe to have if onion and garlic are among your triggers, and a comforting one either way.

It makes four servings and reheats well, so it works as a light lunch, a starter, or something easy to have on hand during a busy holiday week.

Ginger carrot soup

Serves 4. Prep time: 15 minutes. Cook time: about 30 minutes.

Ingredients

• 2 tablespoons olive oil
• 1 tablespoon finely grated fresh ginger (about a 1-inch piece)
• 1 teaspoon ground cumin
• 1/2 teaspoon ground turmeric (optional)
• 1 1/2 pounds carrots (about 8 medium), peeled and sliced
• 1 medium Yukon Gold potato, peeled and diced
• 1/2 teaspoon salt, plus more to taste
• 4 cups water, or low-sodium broth made without onion or garlic
• 1 to 2 tablespoons fresh lemon or orange juice
• To serve (optional): chopped chives or cilantro, a spoonful of plain yogurt, toasted pumpkin seeds

Steps

1. Warm the olive oil in a large pot over medium-low heat. Add the ginger, cumin and turmeric and stir for about 1 minute, until fragrant. Don't let the ginger brown.
2. Add the carrots, potato and salt. Stir to coat everything in the oil and cook for 3 to 4 minutes.
3. Pour in the water or broth. Bring to a boil, then lower the heat, cover and simmer for 20 to 25 minutes, until the carrots are very soft when pierced with a knife.
4. Blend until smooth with an immersion blender. If you use a countertop blender, work in batches, fill it no more than halfway and vent the lid so steam can escape.
5. Stir in the lemon or orange juice. Taste, add more salt if needed, and thin with a little water if the soup is thicker than you like.
6. Serve topped with herbs, a spoonful of yogurt or toasted seeds.

Store leftovers in a sealed container in the fridge and eat within a few days, or freeze individual portions for later.

Why there's no onion or garlic

Onion and garlic are among the richest vegetable sources of fructans, a type of fermentable carbohydrate. In lab measurements of 60 vegetables, garlic, artichoke, shallots, leek bulb and onions had the highest fructan content (Muir et al., 2007). For people who react to fructans, a soup that starts with an onion and a few garlic cloves can be a hidden trigger.

If onion and garlic don't bother you, feel free to add them at the start. This recipe simply doesn't depend on them.

One thing to check: many store-bought broths list onion or garlic in their ingredients, so read the label, or use water and adjust the seasoning at the end. Using water also keeps you in charge of the salt.

What does the ginger do?

Ginger has been reported to ease upper digestive symptoms, and a few small studies have looked at what it does in the stomach. In one, 24 healthy volunteers took 1.2 grams of ginger in capsules an hour before a bowl of soup. Their stomachs emptied faster than with placebo, with a half-emptying time of 13.1 minutes versus 26.7, but ginger didn't change any digestive symptoms (Wu et al., 2008).

A follow-up study in 11 people with functional dyspepsia found the same pattern: faster stomach emptying, with a median half-emptying time of 12.3 minutes with ginger versus 16.1 with placebo, but no difference in symptoms (Hu et al., 2011).

So the ginger in this soup is mainly there for flavor. A tablespoon of fresh ginger spread over four bowls isn't the same as the capsules used in those studies, and neither study showed symptom relief. Think of it as a warming ingredient, not a treatment.

Easy variations

• Add protein: stir in shredded cooked chicken, or serve with a boiled egg on the side.
• Skip the potato: simmer 1/3 cup rinsed white rice with the carrots for a similar creamy texture.
• Make it richer: stir in a few tablespoons of canned coconut milk before blending.
• Add heat: a pinch of chili flakes or black pepper at the end.
• Brighten it: orange juice gives a sweeter finish than lemon.

To turn a bowl into a full lunch, pair it with a slice of bread you know sits well with you and a hard-boiled egg, or serve a smaller cup alongside a simple rice and chicken plate.

When soup isn't enough

A gentle meal can make an uncomfortable day easier, but it isn't a fix for symptoms that need a checkup. See a doctor if bloating is new and happens most days, especially with early fullness, pelvic pain or urinary urgency, or if you notice blood in your stool, weight loss you can't explain, persistent vomiting or trouble swallowing.

Sources

1. Muir JG, Shepherd SJ, Rosella O, Rose R, Barrett JS, Gibson PR. Fructan and free fructose content of common Australian vegetables and fruit. J Agric Food Chem. 2007;55(16):6619-27. PMID 17625872
2. Wu KL, Rayner CK, Chuah SK, et al. Effects of ginger on gastric emptying and motility in healthy humans. Eur J Gastroenterol Hepatol. 2008;20(5):436-40. PMID 18403946
3. Hu ML, Rayner CK, Wu KL, et al. Effect of ginger on gastric motility and symptoms of functional dyspepsia. World J Gastroenterol. 2011;17(1):105-10. PMID 21218090

This article is for general information and isn't medical advice. If you have a digestive condition or take medication, talk to your healthcare provider before using ginger supplements or making major changes to your diet.