This Thai sweet potato soup is a delightful blend of flavors that will warm your soul. The creamy texture of coconut milk combined with the subtle heat from red curry paste creates a comforting dish perfect for any season. Whether you're looking for a quick weeknight meal or something special to impress your guests, this soup is sure to satisfy.
Some ingredients in this recipe might not be staples in your pantry. Red curry paste is a key component that adds depth and spice to the soup, and it can usually be found in the international aisle of your supermarket. Coconut milk is another essential ingredient that provides a rich and creamy texture, typically located in the canned goods section. Freshly squeezed lime juice adds a zesty finish, so make sure to pick up a couple of limes.
Ingredients for Thai Sweet Potato Soup
Sweet potatoes: Provide a natural sweetness and creamy texture when pureed.
Olive oil: Used for sautéing the onions and garlic, adding a subtle richness.
Onion: Adds a savory base flavor to the soup.
Garlic: Enhances the overall flavor with its aromatic qualities.
Red curry paste: Brings a spicy and flavorful kick to the soup.
Vegetable broth: Forms the liquid base of the soup, adding depth and richness.
Coconut milk: Provides a creamy and slightly sweet texture.
Lime juice: Adds a fresh, zesty finish to the soup.
Salt: Enhances the flavors of all the ingredients.
Black pepper: Adds a hint of spice and complexity.
Cilantro: Used as a garnish, adding a fresh and vibrant touch.
Technique Tip for This Recipe
When sautéing the onion and garlic, ensure they are cooked until the onion is translucent and the garlic is fragrant but not browned. This helps to develop a deeper, more complex flavor base for the soup. Additionally, when adding the red curry paste, cook it for a minute to allow the spices to bloom, enhancing the overall taste of the dish.
Suggested Side Dishes
Alternative Ingredients
sweet potatoes - Substitute with butternut squash: Butternut squash has a similar texture and sweetness, making it a great alternative in soups.
olive oil - Substitute with coconut oil: Coconut oil adds a subtle coconut flavor that complements the Thai-inspired ingredients.
onion - Substitute with shallots: Shallots offer a milder and slightly sweeter flavor, which can enhance the overall taste of the soup.
garlic - Substitute with ginger: Ginger provides a different but complementary flavor profile that works well in Thai cuisine.
red curry paste - Substitute with yellow curry paste: Yellow curry paste has a similar spice level and can be used if red curry paste is unavailable.
vegetable broth - Substitute with chicken broth: Chicken broth can be used if you are not strictly vegetarian, adding a richer flavor.
coconut milk - Substitute with almond milk: Almond milk can be used for a lighter, less creamy texture, though it will change the flavor slightly.
lime juice - Substitute with lemon juice: Lemon juice provides a similar acidity and brightness to the soup.
cilantro - Substitute with parsley: Parsley can be used as a garnish if cilantro is not available, though it will alter the flavor profile slightly.
Alternative Recipes Similar to This Soup
How to Store or Freeze This Soup
Allow the Thai Sweet Potato Soup to cool completely before storing. This prevents condensation, which can lead to a watery soup.
Transfer the cooled soup into airtight containers. For individual servings, use smaller containers or freezer-safe bags. Make sure to leave some space at the top, as the soup will expand when frozen.
Label the containers with the date and contents. This helps you keep track of how long the soup has been stored.
Store the soup in the refrigerator if you plan to consume it within 3-4 days. Ensure the temperature is set to 40°F (4°C) or below.
For longer storage, place the containers in the freezer. The Thai Sweet Potato Soup can be frozen for up to 2-3 months without losing its flavor and texture.
When ready to eat, thaw the soup in the refrigerator overnight. This gradual thawing helps maintain the soup's quality.
Reheat the soup on the stovetop over medium heat, stirring occasionally. Avoid boiling, as this can cause the coconut milk to separate.
If reheating from frozen, you can also use a microwave. Transfer the soup to a microwave-safe container and heat in short intervals, stirring in between, until fully heated.
Adjust the seasoning after reheating. Sometimes, frozen soups may need a little extra salt or lime juice to bring back their vibrant flavors.
Garnish with fresh chopped cilantro just before serving to add a burst of freshness and color.
How to Reheat Leftovers
On the stovetop: Pour the Thai Sweet Potato Soup into a saucepan. Heat over medium-low heat, stirring occasionally to ensure even heating. Avoid bringing it to a boil to maintain the creamy texture of the coconut milk.
In the microwave: Transfer a portion of the soup to a microwave-safe bowl. Cover with a microwave-safe lid or plate to prevent splatters. Heat on high for 1-2 minutes, stirring halfway through. Continue heating in 30-second intervals until the soup is hot.
In a slow cooker: If you have time and want to keep the soup warm for an extended period, pour it into a slow cooker. Set it on low heat for 1-2 hours, stirring occasionally. This method is perfect for gatherings or meal prep.
Using a double boiler: For a gentle reheating method, use a double boiler. Fill the bottom pot with water and bring it to a simmer. Place the Thai Sweet Potato Soup in the top pot and heat, stirring occasionally, until warmed through. This method helps prevent the soup from scorching.
In the oven: Preheat your oven to 350°F (175°C). Pour the soup into an oven-safe dish and cover with foil. Heat for about 20-30 minutes, stirring halfway through, until the soup is hot. This method is useful if you're reheating a large quantity.
Best Tools for Making This Soup
Large pot: Used to cook the soup and simmer the ingredients together.
Wooden spoon: Ideal for stirring the ingredients while they cook.
Chef's knife: Essential for chopping the onion and dicing the sweet potatoes.
Cutting board: Provides a safe surface for chopping and dicing vegetables.
Garlic press: Handy for mincing the garlic cloves quickly.
Measuring spoons: Necessary for measuring the olive oil, red curry paste, and lime juice.
Measuring cups: Used to measure the vegetable broth and coconut milk.
Blender: Used to puree the soup until smooth.
Ladle: Useful for serving the hot soup into bowls.
Serving bowls: For presenting the soup to be enjoyed.
Chopping knife: For finely chopping the cilantro for garnish.
How to Save Time on This Recipe
Prep ingredients ahead: Peel and dice the sweet potatoes and chop the onion and garlic the night before.
Use pre-minced garlic: Save time by using store-bought minced garlic instead of mincing it yourself.
Opt for an immersion blender: Instead of transferring the soup to a blender, use an immersion blender directly in the pot for a quicker puree.
Pre-measure spices: Measure out the red curry paste and other seasonings in advance to streamline the cooking process.
Batch cooking: Double the recipe and freeze half for a quick meal later.

Thai Sweet Potato Soup Recipe
Ingredients
Main Ingredients
- 2 medium sweet potatoes peeled and diced
- 1 tablespoon olive oil
- 1 medium onion chopped
- 2 cloves garlic minced
- 1 tablespoon red curry paste
- 4 cups vegetable broth
- 1 can coconut milk
- 1 tablespoon lime juice freshly squeezed
- to taste salt
- to taste black pepper
- for garnish cilantro chopped
Instructions
- Heat the olive oil in a large pot over medium heat.
- Add the chopped onion and cook until translucent, about 5 minutes.
- Add the minced garlic and red curry paste, cook for another minute.
- Add the diced sweet potatoes and vegetable broth. Bring to a boil, then reduce heat and simmer until sweet potatoes are tender, about 20 minutes.
- Use a blender to puree the soup until smooth. Return to the pot.
- Stir in the coconut milk and lime juice. Season with salt and pepper to taste. Heat through but do not boil.
- Serve hot, garnished with chopped cilantro.
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