Japanese milk roll meets French brioche – and the resulting bread rolls are out of this world delicious.
Brioche or milk dough?
Technically, this isn’t standard brioche dough. It’s a cross between brioche and the Japanese milk bread dough, which uses the cooked starter of flour and milk called tangzhong. But since I had to give these rolls a name, and an ‘enriched dough tangzhong bread rolls is a bit of a mouthful, I settled on ‘brioche rolls’.
Still, this is a little constraining: brioche is only good for butter and jam in the common perception, while these rolls are up for anything – anything at all, including a bacon sarnie and a burger.
On the other hand brioche as a housing for a burger has recently gained much popularity so perhaps I’m not shooting myself – and the rolls – in the foot.
How to make tangzhong
Making tangzhong is very much like cooking roux for a bechamel sauce, just without the butter (but who knows?). A slurry of flour and milk is cooked while whisked energetically over medium heat until it thickens and turns silky and glossy, slightly like choux pastry or perfectly mashed potatoes.
It needs to be cold to use it so it’s completely appropriate to make it a day ahead. The whole dough making process takes up to two days anyway so another day added to the mix will not take much more planning.
Making the enriched bread dough
Cold tangzhong constitutes the base for the dough and with the eggs and the butter it’s seriously rich. Therefore, it needs working for a long time and without a standing mixer it is going to be really hard labour.
The gluten strands need to develop strong enough to lift this rich mix to an airy and light bake – not entirely unlike panettone and similar breads – which is why this is the only occasion apart from Christmas when I test the dough’s stretchiness with a windowpane test.
Windowpane test
Pinch a ball of dough and try to stretch it into a membrane without it tearing, thin enough for the light to pass through. It is an exciting exercise, even more so if the dough passes the test at the first attempt. If it fails, work it some more and try again.
Long cold proof, short hot bake
The dough then proves overnight in the fridge and the following day we need to shape it while still cold. If it warms up, it will become sticky and impossibly runny.
Shaped buns rise in a warm kitchen though one of these days I might try putting them back in the fridge to prove.
And what of the end product? They are superb, light, fluffy, melting in your mouth – all the characteristics of all-white, delicate rolls. NY Times, where I found inspiration for the dough, calls them hamburger buns but that is far too limiting. I want them every day, not just on burger occasions!