BaÂ·sidÂ·iÂ·oÂ·myÂ·coÂ·ta. A phylum of fungi characterized by a spore-bearing organ, the basidium, that is usually a clavate cell that bears basidiospores after karyogamy and meiosis. Some mycologists have raised the class Basidiomycetes to the phylum or division level.
Add the onions to the skillet and increase the heat to medium-high. Cook until they begin to turn dark brown and somewhat soft, about 5 minutes. Add the oil and a pinch of the fine sea salt; continue cooking until the onions are soft and caramelized, about 5 minutes longer.. Soft, dark brown onions in five minutes. That is a lie. Fully caramelized onions in five minutes more.
1 Melt the butter: Place your skillet over medium heat and melt the butter. 2  Add the onions: Add all the onions to the pan and stir them gently to coat with butter.  Caramelize the onions: Check the onions every 5 to 10 minutes. Stir the onions and scrape up any fond that forms on the bottom of the skillet.