Pommes fondantes is a traditional side dish originating from France and a technique of cooking new potatoes. The potatoes are well-scraped, washed, and dried, and then browned in butter, either whole, or with the ends cut off. They're roasted in butter and chicken or beef stock until fully cooked.
If properly prepared, the potatoes should be golden on the outside and melting inside. The flavor of butter is essential to the dish, and margarine should be avoided at all costs because it will leave a sediment at the bottom of the pan that burns and sticks.