How long should haricot verts steam for?

Haricot verts should steam for about 4 to 6 minutes until they are tender yet still crisp. It's important to keep an eye on them, as overcooking can lead to a loss of color and crunch. For best results, you can test them with a fork or taste a piece to ensure they reach your desired level of doneness. After steaming, you can quickly cool them in ice water to retain their vibrant color.