Name: Instant Pot Thai Soup With Corn and Zucchini
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Ingredients: 4 cups low sodium chicken broth; 1 can full fat coconut milk; 2 tablespoons fish sauce; 2 tablespoons fresh lime juice; 1 medium yellow onion, diced; 3 cloves garlic, minced; 1 tablespoon fresh ginger, minced or grated; 2 tablespoons red curry paste; 1 tablespoon brown sugar or coconut sugar; 1 tablespoon neutral oil (such as avocado, canola, or grapeseed oil); 2 cups fresh or frozen corn kernels; 2 medium zucchini, halved lengthwise and sliced into half moons; 1 large red bell pepper, sliced; 2 medium carrots, thinly sliced; 2 cups baby spinach or chopped kale; 1 pound thinly sliced chicken breast or thighs (or cubed extra firm tofu); salt and black pepper, to taste; 1/4 cup fresh cilantro, chopped; 2 stalks green onions, sliced; extra lime wedges, for serving; 1 small red chili or jalapeño, thinly sliced, for extra heat; cooked rice or rice noodles, for serving

Instant Pot Thai Soup With Corn and Zucchini tastes creamy, bright, and a little spicy, with sweet pops of corn and tender zucchini in every spoonful. It works perfectly for busy weeknights, since you bring it to the table in about 30 minutes from start to finish. I tested versions of this soup while my kids did homework at the kitchen counter, so you can picture the chaos level I already handled for you.

Why Make This Instant Pot Thai Soup With Corn and Zucchini at Home

You control the spice level, the veggie mix, and the quality of your ingredients, which makes this Instant Pot Thai Soup With Corn and Zucchini feel both cozy and fresh. The pressure cooker locks in flavor quickly, so the broth tastes like it simmered all afternoon, even when you cook it after work.

You also save money compared to takeout and skip mystery ingredients. Clean-up stays easy, since everything cooks in one pot and the Instant Pot keeps the kitchen cooler than the stovetop.

This Instant Pot Thai Soup With Corn and Zucchini tastes like a restaurant favorite but comes together in one pot with almost no effort, ★★★★★

Ingredients You Need

Here is what you need to cook Instant Pot Thai Soup With Corn and Zucchini at home.

Broth base

Low sodium chicken broth or vegetable broth
- Use low sodium so you control the salt.
- Use vegetable broth to keep the soup vegetarian.
Full fat coconut milk
- Canned only, not the carton kind.
- I like Thai Kitchen or Aroy-D for consistent texture.
Fish sauce
- Adds salty depth and classic Thai flavor.
- Use a splash of soy sauce or tamari if you avoid fish sauce, but the flavor shifts slightly.
Lime juice
- Fresh lime juice tastes brighter than bottled.
- Add extra at the end if you like more tang.

Aromatics and flavor

Yellow onion, diced
Fresh garlic, minced
Fresh ginger, minced or grated
Red curry paste
- I often use Thai Kitchen red curry paste since most grocery stores carry it.
- Some brands taste hotter than others, so adjust the amount if you feel unsure.
Brown sugar or coconut sugar
- Balances the heat and acidity.
- You can use honey if you prefer.
Neutral oil
- Avocado oil, canola oil, or grapeseed oil all work.
- Use what you keep in your pantry.

Vegetables and protein

Fresh or frozen corn kernels
- Sweet corn pairs really well with the spicy curry broth.
- Frozen corn works great and saves time.
Zucchini, halved lengthwise and sliced into half moons
Red bell pepper, sliced
Carrots, thinly sliced
Baby spinach or chopped kale
Protein of choice
- Thinly sliced chicken breast or thighs cook quickly.
- Use cubed extra firm tofu for a vegetarian Instant Pot Thai Soup With Corn and Zucchini.
- Shrimp also works, but add it after pressure cooking and simmer on sauté so it does not overcook.

Seasoning and toppings

Salt and black pepper
Fresh cilantro, chopped
Green onions, sliced
Extra lime wedges
Thinly sliced red chili or jalapeño for extra heat
Cooked rice or rice noodles, optional but very comforting

Equipment list

Instant Pot or other electric pressure cooker, 6 quart or larger
Cutting board and sharp knife
Wooden spoon or silicone spatula
Measuring cups and spoons
Ladle for serving

Tips & Mistakes

Sauté the aromatics long enough to soften the onion and bloom the curry paste, or the broth tastes flat.
Cut the chicken or tofu into small, even pieces so everything cooks at the same rate.
Add coconut milk after pressure cooking if your Instant Pot tends to trigger the burn warning, since some models react to thicker liquids.
Do not overfill the Instant Pot past the max line, because the soup needs space to come to pressure safely.
Taste the broth before serving and adjust lime, fish sauce, and sugar so the flavor hits salty, sweet, and tangy notes.
Stir in tender veggies like zucchini and spinach after pressure cooking and use sauté briefly, or they turn mushy.
Use frozen corn straight from the freezer; thawing it first adds no benefit and slows you down.
Vent the pressure away from your cabinets, since the steam can leave a film on nearby surfaces.

How to Make Instant Pot Thai Soup With Corn and Zucchini

Step 1: Prep ingredients

Chop the onion, garlic, and ginger. Slice the zucchini, bell pepper, and carrots. Cut your protein into bite-size pieces and pat it dry with a paper towel so it browns better.

Measure the curry paste, fish sauce, sugar, and broth before you start cooking. Open the can of coconut milk and stir it so the cream and liquid blend together.

Step 2: Sauté aromatics and curry paste

Set the Instant Pot to Sauté and let it heat for a minute. Add a drizzle of oil, then add the onion and cook until it turns translucent and soft, about 3 to 4 minutes, while you stir occasionally. Add garlic and ginger and cook 1 minute, just until they smell fragrant.

Stir in the red curry paste and cook it with the aromatics for 1 to 2 minutes. This step wakes up the spices in the paste and deepens the flavor of the Instant Pot Thai Soup With Corn and Zucchini.

Step 3: Build the broth

Pour in a splash of broth and scrape the bottom of the pot with your spoon to lift any browned bits. This step prevents the burn warning. Add the rest of the broth, fish sauce, and sugar, then stir well.

Add the carrots and bell pepper. Add the chicken or tofu if you use it. Hold back the zucchini, corn, and leafy greens for later so they keep a better texture.

Step 4: Pressure cook

Cancel Sauté. Lock the lid in place and set the valve to Sealing. Cook on Manual or Pressure Cook, high pressure, for 5 minutes if you use thinly sliced chicken or tofu.

When the timer ends, let the pressure release naturally for 5 minutes. After that, switch the valve to Venting and release the remaining pressure carefully.

Step 5: Add coconut milk and quick cooking veggies

Open the lid and switch back to Sauté on low. Stir in the coconut milk until the broth looks creamy and smooth. Add the zucchini and corn.

Simmer for 3 to 5 minutes until the zucchini turns tender but not mushy and the corn heats through. Stir in the spinach or kale and cook 1 to 2 minutes, just until the greens wilt.

Step 6: Adjust seasoning

Taste the soup. Add more fish sauce for salt, more sugar for balance, and more lime juice for brightness. Add a pinch of salt and pepper if you want a stronger base flavor.

If the soup tastes too spicy, add a little extra coconut milk or a splash of broth. If it tastes too mild, stir in a spoonful of extra curry paste and simmer a couple more minutes.

Step 7: Serve

Turn off the Instant Pot and let the soup sit for a couple of minutes so it cools slightly and thickens. Ladle the Instant Pot Thai Soup With Corn and Zucchini into bowls. Add cilantro, green onions, and chili slices on top.

Serve with lime wedges on the side so everyone can squeeze in extra acidity. Add a scoop of cooked rice or rice noodles to the bowl if you want a heartier meal.

Variations I've Tried

I swap chicken for tofu often when I cook Instant Pot Thai Soup With Corn and Zucchini for vegetarian friends. I press the tofu briefly, cut it into cubes, and stir it in after pressure cooking so it holds its shape better. The tofu soaks up the curry broth and tastes rich and satisfying.

I also use shrimp sometimes. I pressure cook the broth and veggies without shrimp, then add peeled shrimp and simmer on Sauté for 3 minutes until they turn pink and firm. This method keeps the shrimp tender and avoids rubbery texture.

I switch up the veggies based on what I have in the fridge. Green beans, snap peas, or small broccoli florets all work well. I also add a spoonful of peanut butter sometimes to the broth for a slightly nutty, satay-style twist.

How to Serve Instant Pot Thai Soup With Corn and Zucchini

Serve Instant Pot Thai Soup With Corn and Zucchini steaming hot in deep bowls, with plenty of broth and a generous scoop of veggies in each serving. Add cooked jasmine rice, brown rice, or rice noodles to the bottom of the bowl if you want a more filling dinner. Offer toppings like extra cilantro, green onions, chili slices, and lime wedges so everyone can customize their bowl.

Pair the soup with a simple cucumber salad, steamed edamame, or fresh fruit on the side. The creamy coconut broth and sweet corn already bring a lot of flavor, so you can keep the sides light and simple.

How to store

Cool the Instant Pot Thai Soup With Corn and Zucchini to room temperature, then store it in airtight containers in the fridge for up to 4 days.
Store rice or noodles in a separate container so they do not soak up all the broth.
Freeze the soup in freezer safe containers for up to 2 months, but leave a little space at the top for expansion.
Thaw frozen soup overnight in the fridge or in a bowl of cold water, then reheat gently on the stovetop over medium heat, or in the microwave in short bursts, stirring often so the coconut milk stays smooth.