Dish · american
Brownie
Brownies are a dense chocolate bar cooked in a pan rather than risen like cake, using enough butter and sugar relative to flour to stay chewy instead of light.

Where it comes from
The bar's exact origin is disputed and often tied loosely to turn of the century American cookbooks, but its defining trait, a dense texture instead of a fluffy one, comes from a deliberately low ratio of flour to fat and egg.
What cooks argue about
The whole argument is texture: more flour and a longer bake gives a cakey brownie, while less flour and pulling it out while the center still jiggles gives one that's fudgy and dense.
Versions
Nobody has published a brownie here yet. When somebody cooks one from a video and publishes it, their version appears in this list, with a link back to the original.
What goes in it
Each one opens everything else made with it.