What makes brioche bread different from white bread?

No. It's the stick of butter per cup of flour :)

It is fat. Brioche is made from a very short and sticky dough with butter and eggs. A very lean bread like the Italian I make almost daily has no butter, no shortening, no eggs, no milk. Just water, flour, yeast and a touch of salt and sugar. The only fat in it is the small amount of fat in the flour itself. Brioche has lots of fat in it. Lots and lots.

Fred The Good Gourmet

Brioche is a rich type of contnental bread which contains lots of butter and eggs. Milk can be optional in some recipes It is made like an ordinary dough with lots of eggs, but butter is added gradually while mixing until completely absorbed. It is then rested first usually under refrigeration preferably overnight and the next day while still cold its divided and shaped and placed in fluted moulds for brioche a tete and in other pans and moulds for other brioche varieties. It is not difficult to find a good recipe for such rich bread even in the web. Roy