The Cilantro Roots I Used to Throw Away For years I treated cilantro like most people treat cilantro. I bought a bunch, used the leaves, and threw the stems and roots into the trash or compost. The stems seemed like an inconvenient obstacle between me and the leaves I actually wanted. Then I watched a Thai cooking video where the cook pounded cilantro roots into a curry paste. Not the stems. The roots. The part I had been throwing in the garbage for my entire adult life. I had never even noticed cilantro roots before. The bunches I bought at the grocery store sometimes had them, sometimes didn't. I had never thought to look. When I started paying attention, I realized the roots were the most flavorful part of the entire plant. What Cilantro Roots Actually Taste Like Cilantro leaves are bright and citrusy and slightly soapy to some people. The stems are more intense than the leaves but similar in character. The roots are completely different. They're earthy and deep and almost peppery. They taste like cilantro but grounded. Less bright, more savory. They remind me of coriander seed, which makes sense because they're the same plant at a different stage. When you cook cilantro roots, the flavor mellows and deepens. It adds a savory backbone that you can't get from the leaves alone. This is why Thai and Vietnamese cooking treat cilantro roots as an aromatic on par with garlic and ginger. Where I Use Them Now Pounded into a paste with garlic and white peppercorns for Thai-style marinades. This paste on chicken or pork is the base of so many dishes I used to think required a restaurant. Minced finely and added to the aromatics at the beginning of soup. Any soup. Chicken soup, vegetable soup, coconut curry soup. They add a savory depth that people can't identify. Bruised with the back of a knife and dropped into rice cooking water. The rice becomes fragrant and slightly herbal. Chopped finely and stirred into salad dressing or yogurt sauce. More intense than leaves, less expected. Frozen in a bag with other aromatic scraps for stock. They add a distinctive note that makes homemade stock taste more complex. The Problem With Buying Them Most grocery store cilantro comes with the roots cut off. The bunches are trimmed to look neat and uniform. Finding cilantro with roots attached requires farmers markets or Asian grocery stores or growing your own. I started growing cilantro in a pot on my windowsill partly for this reason. The leaves are nice to have fresh. The roots are the real prize. Cilantro grows quickly from seed and is ready to harvest in a few weeks. The roots come out with the plant when you pull it. How to Clean Them Cilantro roots are gnarly and often muddy. They need more cleaning than the leaves. I soak them in a bowl of water and swish them around until the dirt settles at the bottom. Then I lift them out and rinse under running water. A little scrubbing with fingers removes any remaining grit. Once clean, they store in the refrigerator for a few days. Or I freeze them whole and use them directly from the freezer. What Else I Was Throwing Away The cilantro root discovery made me reconsider everything I discard in the kitchen. Leek tops I used to throw away. Now they go into stock. Carrot tops become pesto. Broccoli stems get peeled and sliced and cooked alongside the florets. Potato peels fried in oil become a crispy snack. So much of what we throw away is actually an ingredient. Not scraps. Not waste. Just ingredients we haven't learned to use yet. The Bigger Point Every cuisine has ingredients that outsiders don't understand. Cilantro roots seem like garbage if you grew up in a culture that only uses the leaves. They're essential if you grew up with Thai food. Learning to cook from different traditions has taught me more about reducing waste than any sustainability guide. People around the world have been using every part of plants and animals for centuries. The knowledge is there. I just have to pay attention and be willing to learn. What I Want to Know What's the ingredient you used to throw away until you learned it was valuable? The scrap that turned out to be the best part? Tell me in the comments. I'm sure there are things I'm still throwing away that someone else knows how to use.