Spinach Coriander Lemongrass Soup

A friend once brought a thermos of this soup to a rainy afternoon gathering, and the entire room went quiet the moment she opened it—the scent of lemongrass and coriander just filled everything. I asked for the recipe that day, and what struck me was how something so fragrant could be made in under forty minutes with ingredients that felt both exotic and comforting. Now whenever I make it, that same spell happens.

I made this for my partner when they were tired and depleted, and watching them actually relax with each spoonful reminded me why simple food matters most. There's something about the warmth of turmeric and ginger paired with that bright coriander that feels genuinely healing, not just nourishing.

Ingredients

• Fresh spinach, 200 g: Use it just-washed and still slightly damp—it wilts faster and you'll get more tender greens without overcooking.
• Fresh coriander (cilantro): Keep the stems separate from leaves; stems add depth during cooking while fresh leaves brighten the finished soup.
• Lemongrass, 1 stalk: Strip away those papery outer layers first and slice it thin so it releases its oils fully into the broth.
• Onion, 1 medium: Chopped fine melts into the background and becomes the quiet foundation of everything else.
• Garlic and ginger: Mince the garlic small and grate the ginger fresh—jarred versions never quite capture that sharp, alive quality.
• Green chili, optional: Leave the seeds in if you want real heat, remove them for just a whisper of warmth.
• Coconut milk, 400 ml: Full-fat is non-negotiable here; it's what makes the soup feel luxurious and silky.
• Vegetable stock, 500 ml: A good quality one matters because it's the backbone carrying all those spice flavors.
• Ground cumin and coriander: Toast these in the pan briefly so they wake up and bloom before you add liquid.
• Turmeric, 1/2 tsp: A little goes a long way; it adds warmth and that golden color that makes the soup look alive.
• Coconut oil or neutral oil, 1 tbsp: Coconut oil deepens the flavor profile if you want to lean into the Asian-inspired direction.

Instructions

Warm the oil and soften your aromatics:

Heat coconut oil in a large pot over medium heat until it shimmers slightly, then add chopped onion and let it sit for two to three minutes until the edges turn translucent and soft. You want that base to be tender before the rest arrives.

Build the fragrance:

Add minced garlic, grated ginger, and sliced lemongrass, stirring constantly for about two minutes until the kitchen smells like you've unlocked something magical. This is when you know the foundation is right.

Bloom the spices:

Stir in ground cumin, ground coriander, turmeric, and green chili if using, cooking for just one minute while everything smells toasted and warm. Don't let them sit too long or they'll taste bitter instead of bright.

Wilt the greens:

Add spinach and coriander stems, stirring until the spinach collapses into the pot and releases its dark green color, about two to three minutes. The greens will seem to take up so much space until suddenly they don't.

Simmer the broth:

Pour in coconut milk and vegetable stock, bring everything to a gentle simmer, and let it bubble softly for ten to twelve minutes so flavors marry and deepen. Don't rush this part; it's where the magic really happens.

Add brightness:

Remove from heat and stir in most of the fresh coriander leaves, saving a small handful for garnish and that fresh burst at the end.

Blend to silky smoothness:

Use an immersion blender directly in the pot to puree everything until creamy and completely smooth, or carefully transfer to a countertop blender in batches. The immersion blender method keeps the warmth and mess to a minimum.

Season and taste:

Add salt and pepper to your preference, tasting as you go because everyone's palate is different and you're the only one who knows what you like.

Serve warm:

Ladle into bowls and top with reserved coriander leaves and lime wedges so each person can brighten their own bowl just the way they want it.

Save

My mother tasted this once and asked if I'd taken a cooking class, which made me laugh because it's genuinely one of the easiest things to make. But that moment when someone thinks you've done something fancy because the flavors are layered and warm—that's when you know you've nailed it.

A Soup for Adjusting the Heat

The beauty of this recipe is that spice level is entirely in your hands. Start without the green chili if you're unsure, taste it when it's done, and you can always add a tiny pinch of cayenne or white pepper directly to your own bowl. I've made it for people whose throats close around heat and for friends who eat ghost peppers for breakfast, and it works either way.

Stretching It Further

If you want to turn this into something more substantial, add a small peeled and diced potato with the spinach and let it simmer until completely soft before blending. You can also stir in cooked jasmine rice or noodles just before serving, or swirl in a spoonful of cashew cream for extra richness. I've even added a tin of chickpeas and called it dinner instead of a starter.

Why Lemongrass Is Worth Finding

Lemongrass is one of those ingredients that seems intimidating until you realize it's just a fragrant grass that wants to share its flavor with whatever you're making. Once you've cooked with it once, you'll start adding it to everything. The scent alone is worth the trip to find it, and most grocers stock it year-round now in the fresh produce section.

• If you can't find fresh lemongrass, dried works in a pinch but use half the amount and let it steep longer in the liquid.
• Always slice it thin so the essential oils release fully instead of just floating around unused.
• Store leftover lemongrass in the freezer wrapped in plastic; it keeps for months and tastes just as good when thawed.

Save

This soup has become my go-to gift in a thermos when someone needs warmth, whether it's from cold weather or a hard day. It's fast enough to make on a Tuesday but tastes like you cared.

Recipe FAQs

→ Can I make this soup ahead of time?

Yes, this soup keeps well for up to 3 days in the refrigerator. The flavors actually develop and improve overnight. Reheat gently over medium-low heat, stirring occasionally to prevent separation.

→ Is it possible to freeze this soup?

Absolutely. Cool completely before transferring to airtight containers. Freeze for up to 3 months. Thaw overnight in the refrigerator and reheat gently. The texture may be slightly thinner after freezing.

→ What can I serve with this soup?

Crusty bread, naan, or steamed jasmine rice pair beautifully. For a complete meal, add a protein like grilled tofu or shrimp. A crisp white wine like Riesling complements the aromatic flavors.

→ How do I adjust the consistency?

For a thicker soup, add a diced potato during simmering or reduce the stock. For a lighter version, increase the vegetable stock. Blend longer for an ultra-smooth texture or leave slightly chunky if preferred.

→ Can I use frozen spinach instead of fresh?

Frozen spinach works in a pinch. Thaw and drain thoroughly before adding. The flavor will be slightly less vibrant than fresh, and the color may be darker. Use about 150g frozen spinach.

→ Is this soup suitable for meal prep?

Perfect for meal prep. Make a batch on Sunday, portion into containers, and enjoy throughout the week. Reheat individual portions in the microwave for 2-3 minutes, stirring halfway through.