Hello,
I am a chef student from Greece. I have made your brioche burger buns lots of times, and everyone loved them. This time, I would like to prepare salmon burgers, and I thought it would be nice if the buns were black. So the reason I am writing to you is to ask whether or not you think that the squid ink will affect the buns (besides the colour of course). Also, at which stage of the recipe do you think I should add the squid ink?