Miso Sweet Potato Pumpkin Soup

Ingredients

• 1 tablespoon (15 ml)olive oil
• 1brown onion, diced
• 600 g, cut into cubespumpkin
• 350 g, cut into cubessweet potato
• 1 inch (2.5 cm)ginger
• 3garlic cloves
• 2 tablespoons (30 ml)white miso paste
• 1 litrevegetable stock
• 1fresh lime, juice

Instructions

1. 1

   Prepare the vegetables

   Peel the pumpkin and cut it into cubes about 1.3 cm thick. Peel and roughly chop the sweet potato and onion. Mince the garlic, then peel the ginger and slice it thinly.

2. 2

   Cook onion and garlic

   Heat the olive oil in a large pot over medium-high heat. Add the onion and garlic and sauté for 3–4 minutes, until slightly caramelised.

3. 3

   Simmer the soup

   Add the pumpkin, sweet potato, ginger, miso and vegetable stock, stirring to combine. Turn the heat to low, cover the pot and simmer for 25 minutes.

4. 4

   Add the lime

   Take the soup off the heat and stir in 2 tablespoons of lime juice.

5. 5

   Blend until smooth

   Blend the soup until smooth using a stick blender or a high-speed blender. Add more lime juice if you like.

6. 6

   Serve the soup

   Serve in bowls with a drizzle of cream, a sprinkle of sesame seeds and fresh coriander (cilantro).

What is miso sweet potato pumpkin soup?

This is a smooth vegetable soup built around pumpkin and sweet potato, with ginger and garlic for warmth and miso for savoury depth. Miso is a fermented Japanese seasoning, while the overall combination makes a flexible, international-style soup rather than a traditional dish from one region.

Here, the vegetables simmer in stock until soft, then are blended into a creamy texture without dairy in the soup itself. Lime stirred in at the end keeps the sweet vegetables and salty miso in balance.

Nutrition and macros by portion

The nutrition label shows one serving as written: 155 calories, 4g protein, 32g carbs, 8g fat.

Most of the carbohydrates come from the pumpkin and sweet potato, while olive oil contributes most of the fat; the miso and stock add some protein, but the soup is not especially protein-rich. For a more balanced plate, serve it with a protein-rich side such as beans or lentils.

Choosing the vegetables

Pumpkin: use a firm, sweet-fleshed variety that will soften evenly during the simmer. Cut the pieces to a similar size so they cook at roughly the same rate.

Sweet potato: peeling it helps the blended soup turn silky. Roughly chopping the onion is fine, as it will soften before everything is blended.

Building savoury flavour

Onion and garlic: sauté them for the full 3–4 minutes, until the onion begins to caramelise slightly. Keep them moving if the pot is very hot so the garlic does not catch.

Miso: stir it in with the vegetables and stock so it disperses through the soup. White miso is relatively gentle, so it adds savouriness without overwhelming the pumpkin.

Getting the texture right

Soft vegetables: after 25 minutes at a gentle simmer, the pumpkin and sweet potato should be easy to pierce with a knife. If they are still firm, continue cooking until tender before blending.

Smooth blending: a stick blender works directly in the pot; a jug blender can be used in batches. Leave space for steam to escape when blending hot soup, following your blender's instructions.

Balancing the finish

Lime: adding it off the heat preserves its fresh, sharp flavour. Start with the stated 2 tablespoons, then taste and add more if you want a brighter finish.

Garnish: the method suggests cream, sesame seeds and fresh coriander. For a fully vegan serving, choose a plant-based cream or leave it out.

Timing and serving

The soup takes about 45 minutes in total, including preparation and the 25-minute covered simmer. Keep the simmer gentle so the vegetables cook through without the liquid reducing too quickly.

Serve it as a light meal with bread, or pair it with a simple salad for a more substantial lunch. A sprinkle of sesame seeds adds a little contrast to the smooth soup.

Recipe notes & tips

• Cut the pumpkin and sweet potato into similar-sized pieces for more even cooking.
• Use a low simmer once the stock is added to keep the vegetables from breaking up too quickly.
• Taste the soup after blending before adding extra lime, as the miso is already savoury.
• Blend in batches if using a jug blender, and avoid filling it to the top with hot soup.
• For a vegan garnish, use plant-based cream or omit the cream altogether.

Variations

• Add chilli: include a little fresh chilli with the ginger for gentle heat.
• Use coconut milk: replace some of the stock with coconut milk for a richer finish.
• Try another miso: use yellow miso for a stronger savoury flavour, then taste before adding extra.
• Make it smokier: add a pinch of smoked paprika with the vegetables.
• Add beans: stir cooked beans into the blended soup for a more filling bowl.

Common mistakes to avoid

• Uneven pieces: large chunks take longer to soften; cut the vegetables to similar sizes.
• Burnt garlic: high heat can make it bitter; stir regularly and lower the heat if it browns too fast.
• Rushing the simmer: blend only when the vegetables are easily pierced and fully tender.
• Adding all the lime at once: taste after the initial 2 tablespoons and adjust gradually.
• Overfilling the blender: hot soup can expand; blend in batches and follow the appliance instructions.

How to store

Cool the soup and refrigerate it in a covered container for up to 3 days. Reheat gently in a saucepan, stirring occasionally; add a splash of stock or water if it has thickened. Freeze portions without the garnish for up to 3 months and thaw before reheating.

Frequently asked questions