Frugal is the last word you’d associate with a rich, gooey brownie, but these brownies are a thrifty treat. Relative to other brownie recipes, these are quite low in butter. They are also chocolate free, that is the chocolateyness comes entirely from cocoa. You’d never tell it was a frugal recipe – dark, treacly, chocolatey, gooey. All the brownie buzzwords.