This Instant Pot Thai Coconut Chicken Soup is a quick and flavorful way to enjoy the comforting taste of Southeast Asian–inspired coconut soups.
Aromatic ingredients like ginger, lemongrass, chili, and lime simmer in creamy coconut milk to create a broth that is both rich and refreshing.
Understanding how these ingredients work together is part of the foundation of cooking with aromatics, a technique that builds flavor by gently releasing the essential oils and fragrance of herbs, spices, and roots during cooking.
Using the Instant Pot allows the aromatics to infuse the broth quickly while keeping the recipe simple enough for weeknight cooking.
If you’re new to pressure cooking, our guide Why We Use the Instant Pot explains how pressure cooking helps develop deeper flavors in soups and broths while reducing cooking time.
Whether served as a cozy dinner, a light lunch, or an impressive starter for guests, this soup is guaranteed to become a favorite.
Garnished with fresh cilantro, lime wedges, and crisp bell peppers, each bowl is vibrant, comforting, and full of delicious Thai-inspired flavor.
What You Will Need To Make Instant Pot Thai Coconut Chicken Soup
4 cups chicken stock (use vegetable stock for vegan)
½ yellow onion, thinly sliced (or 1 bunch scallions)
1½-inch piece fresh ginger, peeled and minced
1 stalk lemongrass, trimmed and halved lengthwise
2 small hot peppers, thinly sliced
1 (13-ounce) can full-fat coconut milk
1 tablespoon red curry paste
1 tablespoon chili paste
If you do not have chili paste substitute:
½–1 teaspoon chili flakes
½ teaspoon brown sugar
2 cups chopped cooked chicken thigh meat (or tofu for vegan)
Handful fresh cilantro, chopped
Juice of 1 lime
Salt to taste
Minced red bell pepper for garnish (optional)
Need a substitution? View our kitchen swaps reference guide for smart, flavor-forward ingredient swaps — covering aromatics, pantry staples, dairy, proteins, and more.
Making Thai Coconut Chicken Soup
Pressure cook the aromatics
Add the following ingredients to the Instant Pot:
Chicken stock, onion, ginger, lemongrass, and chili peppers. Stir briefly.
Close the lid and set the valve to Sealing. Cook on High Pressure for 5 minutes.
Release the pressure
Allow the Instant Pot to naturally release for 5 minutes, then perform a quick release to release the remaining pressure.
Add the coconut and seasonings
Turn the Instant Pot to Sauté (Low).
Stir in the coconut milk, red curry paste, fish sauce and chili paste.
Or, if substituting, add the chili flakes and brown sugar mixture.
Add the chopped cooked chicken.
Simmer gently for 2–3 minutes, just long enough for the flavors to blend and the chicken to warm through.
Finish the soup
Remove the lemongrass stalk. Stir in the lime juice and chopped cilantro. Taste and adjust seasoning with salt if needed.
Serve
Ladle the soup into bowls and garnish with diced red bell pepper, chopped cilantro and lime wedges.
What to Serve With Thai Coconut Chicken Soup
This soup is satisfying on its own but pairs well with simple sides.
Add Jasmine rice to absorb the flavorful coconut broth.
Or use cooked rice noodles to turn the soup into a hearty noodle bowl.
Common Mistakes When Making Thai Coconut Chicken Soup
Even simple soups can lose their balance if a few key steps are overlooked. Avoid these common mistakes to ensure a rich, flavorful broth.
Boiling the Coconut Milk Too Hard
Coconut milk should be gently heated rather than rapidly boiled. High heat can cause the coconut fat to separate, which affects the texture of the broth.
In this recipe, the coconut milk is added after pressure cooking while the Instant Pot is set to Sauté.
Keep the soup at a gentle simmer on Low Sauté, allowing the flavors to blend without bringing the broth to a vigorous boil.
Not Balancing the Flavors
Soups inspired by Tom Kha Gai rely on a balance of spicy, salty, sour, and lightly sweet flavors.
If the soup tastes flat, adjust gradually with:
- a squeeze of lime juice
- a dash of fish sauce
- a small pinch of sugar
Small adjustments can dramatically improve the final flavor.
Leaving the Lemongrass Too Large
Lemongrass adds wonderful aroma but can be fibrous when eaten.
The stalk should be trimmed, lightly crushed, and removed before serving.
This allows the flavor to infuse the broth during pressure cooking without affecting the texture of the finished soup.
Final Thought
Once you try this Instant Pot Thai Coconut Chicken Soup, you’ll see just how simple it is to bring restaurant-quality taste right into your own kitchen.
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