My grandmother is French 🇫🇷, and she has this charming little habit that always caught my attention: she sticks whole cloves into an onion 🧅. When I first noticed this, I was genuinely puzzled. I had never seen anyone do that before, and honestly, I couldn’t imagine why she would. But once I discovered the reason behind this quirky tradition, I was amazed—and now, I do the same myself! I’m absolutely thrilled to share with you this wonderful culinary hack involving cloves and onions that my grandmother taught me.♥

Though cloves may not be the most commonly used spice in many kitchens, they possess remarkable qualities that become truly evident when applied in just the right way. Most people associate cloves with holiday drinks like mulled wine or with marinades, where they add a warm, fragrant note. However, their potential extends far beyond these familiar uses, especially if you look closely at the culinary secrets of French cooking.
French cuisine is celebrated worldwide for its finesse and depth of flavor. Every dish is treated like a masterpiece, where even the smallest details contribute to the overall experience. It’s not surprising, then, that a simple trick such as piercing cloves into an onion plays a subtle but important role in enhancing dishes.
This technique, known as “clouté onion,” literally means “nail-studded onion,” referring to the cloves resembling tiny nails embedded in the onion’s surface. My grandmother always prepared this clouté onion during the colder months—autumn and winter—when fresh herbs were scarce and harder to come by. Instead of fresh herbs, she would rely on this ingenious method to impart layers of flavor to her cooking.

To create a clouté onion, you take a peeled onion and insert about five or six whole cloves evenly spaced into its surface. The cloves slowly release their spicy, warm aroma during cooking, infusing the entire dish with their unique essence. This is not only a flavorful addition but also an aromatic one, which can elevate simple recipes into something truly special.
My grandmother would toss this clouté onion into pots of broth to add depth to soups and stews. But that’s just the beginning. She also used it when frying or braising meats and vegetables. Imagine placing this aromatic onion in a skillet with your choice of meat or setting it alongside a meatloaf on a baking tray—the cloves bring out a subtle, spicy warmth that beautifully complements the natural flavors of the ingredients.
What I find fascinating is how cloves work as a natural flavor enhancer. They don’t overpower the dish but rather highlight its key flavor notes, making the overall taste richer and more balanced. It’s like they gently whisper to your palate, adding complexity without overwhelming it. This method has won the hearts of many cooks beyond France’s borders, becoming a beloved secret in kitchens worldwide.
Thanks to the clouté onion, even the simplest home-cooked meals can suddenly seem elegant and layered with aromas that surprise and delight. It’s a fantastic way to introduce a hint of sophistication without resorting to complicated recipes or hard-to-find ingredients.

If you’ve never tried it before, I highly recommend making your own clouté onion and adding it to your next batch of soup, goulash, or stew. You’ll notice how this humble addition transforms the familiar into something new and exciting, filling your kitchen with enticing scents and your meal with a newfound depth.
What makes this practice even more special is its connection to tradition. It’s not just about flavor; it’s about preserving and passing down culinary wisdom through generations. My grandmother’s clouté onion is a small but meaningful example of how food carries stories and memories—how a simple spice like clove and a humble onion come together to create magic in the kitchen.
In the end, cooking is as much about love and care as it is about ingredients. Using cloves in this way reminds me of my grandmother’s hands, her patience, and her dedication to creating meals that nourish both body and soul ❤️. And now, every time I prepare a dish with a clouté onion, I feel connected to her, to her heritage, and to a tradition that celebrates the art of subtlety in cooking.
So next time you want to experiment with flavors or impress your family with a little French-inspired flair, try this lovely little trick. You might find that something as simple as studding an onion with cloves can open up a whole new world of taste sensations.
Give it a go, and you’ll see that even the smallest culinary details can make the biggest difference. Bon appétit! 🍽️