Pick over beans, discarding shriveled ones, stones, or debris. Rinse under cold water. For best results, use beans bought from a high-turnover store, ideally within one year of harvest — older beans may never fully soften. Soak overnight in cold water to cut cook time (optional). If soaked, drain and rinse. Place beans in a large heavy pot, cover with cold water by at least 2–3 inches. Salt the water until pleasantly salty — this seasons beans from the inside. Add a drizzle of olive oil and aromatics if desired: a head of garlic, bay leaf, sage sprigs, or other herbs. Keep additions light; adjust later.

将豆类煮至沸腾，在高热上撇去泡沫。将热量降低到最低设置——您希望只有几个气泡一次打破表面。盖住并烹饪不受干扰，每30分钟检查一次。每次检查：撇去泡沫，确认水仍然覆盖豆类2-3英寸，根据需要添加冷水，温和地搅拌。烹饪时间从45分钟到3+小时不等，具体取决于豆类品种和年龄。从45分钟后开始品尝。豆类在完全变软和奶油时完成——没有坚硬、粒状或粉笔色的中心。如果您需要燃烧器，煮至沸腾，然后将盖住的锅转移到121°C – 135°C烤箱中并在那里完成。

一旦豆类完全变软（软但不糊烂），从热源上移开。盖住并静置15分钟——这改善了质地和奶油感。用盐和黑胡椒调味。移除并丢弃整个香料，如蒜头或月桂叶。上桌豆类时汤匙一些烹饪液，或为汤保留。用一汩特级初榨橄榄油完成。不要过度烹饪（糊烂、分解）或不足（粒状、坚硬——冷藏后变得更硬）。提前制作：完全冷却未盖的，在冰箱中盖住存储，用少量水或肉汤重新加热。