  The origin of the matter antimatter asymmetry of the universe remains
unexplained in the Standard Model of particle physics. The origin of the
flavour structure is another major puzzle of the theory. In this article, we
report on recent work attempting to link the two themes through the appealing
framework of electroweak baryogenesis. We show that Yukawa couplings of
Standard Model fermions can be the source of CP-violation for electroweak
baryogenesis if they vary at the same time as the Higgs is acquiring its vacuum
expectation value, offering new avenues for electroweak baryogenesis. The
advantage of this approach is that it circumvents the usual severe bounds from
Electric Dipole moments. These ideas apply if the mechanism explaining the
flavour structure of the Standard Model is connected to electroweak symmetry
breaking, as motivated for instance in Randall-Sundrum or Composite Higgs
models. We compute the resulting baryon asymmetry for different configurations
of the Yukawa coupling variation across the bubble wall, and show that it can
naturally be of the right order.
