To make French green beans, also known as haricots verts, start by washing and trimming the ends of the beans. Then, blanch the beans in boiling, salted water for 2-3 minutes until they turn bright green and are slightly tender. Drain the beans and immediately transfer them to a bowl of ice water to stop the cooking process. In a separate pan, melt butter over medium heat and add minced garlic. Add the blanched green beans to the pan, season with salt and pepper, and sauté for 2-3 minutes until they are well coated in the garlic butter. Serve hot and enjoy!