Simple Thai Coconut Red Lentil Soup Recipe tastes creamy, fragrant with lemongrass, ginger, and red curry, and balances mild heat with bright lime. It suits busy weeknights and plant-based eaters, and it takes about 35 minutes start to finish. I ladled a bowl after a cold grocery run, and it lifted my mood in five spoonfuls.
Simple Thai Coconut Red Lentil Soup Recipe
Simple Thai Coconut Red Lentil Soup Recipe uses one pot, quick-cooking red lentils, and pantry staples like canned coconut milk and curry paste. You skip soaking, yet you still get a lush, cozy bowl.
Curry paste brings deep flavor in minutes, while garlic, ginger, and onion round it out fast. You can keep the soup chunky or pulse it with an immersion blender for a silky finish.
Cleanup stays simple thanks to a single pot and minimal chopping. Your spoon does more work than your sink.
Ingredients You Need
- Neutral oil, 1 tablespoon (avocado, canola, or coconut oil)
- Yellow onion, 1 medium, diced
- Garlic, 3 cloves, minced
- Fresh ginger, 1 tablespoon, minced
- Thai red curry paste, 2 to 3 tablespoons (start with 2; Thai Kitchen runs mild, Mae Ploy runs hotter)
- Tomato paste, 1 tablespoon, optional for depth
- Red lentils, 1 cup, rinsed
- Low-sodium vegetable broth, 4 cups (use chicken broth if not vegetarian)
- Lemongrass, 1 stalk, bruised and cut in 3 pieces, or 1 tablespoon lemongrass paste for a shortcut
- Full-fat coconut milk, 1 can 13.5 ounces (light works but yields a thinner soup)
- Brown sugar or coconut sugar, 1 to 2 teaspoons
- Fish sauce, 1 to 2 teaspoons, optional for umami (use tamari, soy sauce, or coconut aminos for vegan)
- Lime, 1 to 2, for zest and juice
- Baby spinach, 2 cups, loosely packed, or chopped kale
- Kosher salt and black pepper, to taste
- Fresh cilantro and sliced scallions, for garnish
- Heat boosters, optional: chili crisp, sliced fresh chiles, or sriracha
Pantry shortcuts and notes:
- Use pre-minced garlic and ginger or squeeze tubes to speed prep.
- Lemongrass paste saves time and still delivers bright citrus notes.
- Microwavable jasmine rice or naan on the side turns this into a full meal.
Equipment:
- Heavy pot or Dutch oven with lid
- Cutting board and knife
- Measuring cups and spoons
- Microplane or zester
- Immersion blender, optional
- Ladle and citrus juicer, optional
How to Make Simple Thai Coconut Red Lentil Soup
- Prep: 10 minutes
- Cook: 25 minutes
- Total: 35 minutes
- Prep the aromatics. Rinse the red lentils. Dice the onion, mince the garlic and ginger, bruise the lemongrass or measure the paste, and zest one lime.
- Sauté the base. Heat the oil over medium in a pot. Add onion and a pinch of salt and cook 4 to 5 minutes until it softens. Stir in garlic, ginger, and curry paste and cook 60 to 90 seconds until fragrant.
- Build the broth. Add tomato paste and stir for 30 seconds. Add lentils, broth, and lemongrass. Scrape the bottom of the pot to pick up any browned bits and bring it to a gentle simmer.
- Simmer to tender. Cover slightly askew and simmer 15 to 20 minutes, stirring a few times, until the lentils turn tender and start to break down.
- Finish with coconut milk. Lower the heat. Remove the lemongrass pieces. Stir in coconut milk, sugar, and fish sauce or tamari. Warm gently and avoid a hard boil.
- Adjust and brighten. Add lime juice to taste, plus more salt or curry paste if you want more punch. If you add extra curry paste, whisk it with a little hot soup in a small bowl, then stir it back in.
- Blend if you want. Pulse an immersion blender 5 to 10 times for a creamier texture, or leave it rustic.
- Add greens and serve. Stir in spinach until it wilts, about 1 minute. Ladle into bowls, top with cilantro and scallions, and finish with a squeeze of lime and a drizzle of chili crisp if you like heat.
Tips & Common Mistakes
- Rinse lentils to wash off excess starch and reduce foaming.
- Sauté curry paste in oil to wake up its aromatics before you add liquid.
- Keep the simmer gentle after you add coconut milk to prevent splitting.
- Start with 2 tablespoons curry paste and add more to taste near the end.
- Taste salt after adding fish sauce or tamari since both bring sodium.
- Thin a too-thick soup with broth. If it runs thin, simmer uncovered for a few minutes.
- Use full-fat coconut milk for the creamiest texture.
- Add greens at the end so they stay vibrant.
- Zest the lime before you cut it. Your knuckles will thank you.
- Stir often near the bottom to keep lentils from sticking.
Variations I’ve Tried
- Sweet potato or kabocha: Add 2 cups small cubes with the lentils and simmer until tender.
- Veg-packed: Add sliced carrots and red bell pepper with the onion for extra color and crunch.
- Peanut butter swirl: Whisk 2 tablespoons peanut butter with hot soup in a bowl and stir it in for satay vibes.
- Curry swap: Use green curry paste for a brighter, herbier profile or massaman for a warm spice note.
- Noodle night: Add cooked rice noodles at the end and let them warm in the pot for 2 minutes.
- Instant Pot: Sauté aromatics on Sauté, add lentils and broth, and pressure cook 6 minutes with quick release. Stir in coconut milk, lime, and greens on Keep Warm.
How to Serve Simple Thai Coconut Red Lentil Soup
Ladle the soup into warm bowls and finish with lime, cilantro, and scallions. Serve with jasmine rice, basmati, or warm flatbread for dunking. Add a crunchy side like cucumber salad or pickled veggies to cut the richness. If you want more heat, pass chili oil or sliced chiles at the table.
Make-Ahead and Storage
- Fridge: Store in airtight containers up to 4 days. The flavors deepen by day two in the best way.
- Freezer: Cool fully, portion, and freeze up to 3 months. Leave headspace to allow expansion.
- Reheat: Warm on the stovetop over medium-low, stirring often. Thin with broth if it thickens, and add a fresh squeeze of lime right before serving.
Nutrition Information
Approximate per serving for 4 servings: 360 calories; 18 g fat; 34 g carbohydrates; 12 g fiber; 13 g protein; 700 mg sodium. Values vary by brand, curry paste, and broth.
Simple Thai Coconut Red Lentil Soup
A flavorful and creamy Thai-inspired red lentil soup made with coconut milk and aromatic spices.
Ingredients
Instructions
- Rinse the red lentils under cold water and set aside.
- In a large pot, sauté onion, garlic, and ginger until fragrant.
- Add red curry paste and cook for another minute.
- Pour in vegetable broth and bring to a boil.
- Add red lentils and reduce heat to a simmer. Cook for 20 minutes.
- Stir in coconut milk and cook for an additional 10 minutes until lentils are tender.
- Season with salt, pepper, and lime juice.
- Serve hot, garnished with fresh cilantro.
Notes
Adjust the spiciness by adding more or less red curry paste. This soup can be made vegan and gluten-free.