Linked from
The 10 pages that link to Cocoa powder, each with the reason it gives.
Hot chocolateRelated: It makes a low-fat, readily mixable base for many everyday versions.
Chocolate milkRelated: It supplies chocolate flavor without the fat content of chocolate bars.
John CadburyRelated: Improvements in processing made cocoa powder a key product in Cadbury’s trade.
TiramisuRelated: A dusting of cocoa adds bitterness and the dessert’s familiar finishing layer.