  The Higgs portal to scalar Dark Matter is considered in the context of
non-linearly realised electroweak symmetry breaking. We determine the dominant
interactions of gauge bosons and the physical Higgs particle $h$ to a scalar
singlet dark matter candidate. Phenomenological consequences are also studied
in detail, including the possibility of distinguishing this scenario from the
standard Higgs portal in which the electroweak symmetry breaking is linearly
realised. Two features of significant impact are: i) the connection between the
electroweak scale $v$ and the Higgs particle departs from the $(v+h)$
functional dependence, as the Higgs field is not necessarily an exact
electroweak doublet; ii) the presence of specific couplings that arise at
different order in the non-linear and in the linear expansions. These facts
deeply affect the dark matter relic abundance, as well as the expected signals
in direct and indirect searches and collider phenomenology, where Dark Matter
production rates are enhanced with respect to the standard portal.
