  We develop photoelectron interferometry based on laser-assisted extreme
ultraviolet ionization for flexible and robust control of photoelectron
circular dichroism in randomly oriented chiral molecules. A comb of XUV photons
ionizes a sample of chiral molecules in the presence of a time-delayed infrared
or visible laser pulse promoting interferences between components of the
XUV-ionized photoelectron wave packet. In striking contrast to multicolor phase
control schemes relying on pulse shaping techniques, the magnitude of the
resulting chiral signal is here controlled by the time delay between the XUV
and laser pulses. Furthermore, we show that the relative polarization
configurations of the XUV and IR fields allows for disentangling the
contributions of bound and continuum states to the chiral response. Our
proposal provides a simple, robust and versatile tool for the control of
photoelectron circular dichroism and experimentally feasible protocol for
probing the individual contributions of bound and continuum states to the PECD
in a time-resolved manner.
