  Molecular ionization in the Central Molecular Zone of our galaxy is enhanced
over the typical galactic value by an order of magnitude or more. This cannot
be easily explained for dense Galactic Center molecular complexes in the
absence of embedded sources of low energy cosmic rays. We provide such a source
in the form of ultracompact minihalos of self-annihilating dark matter for a
variety of annihilation channels that depend on the particle mass and model.
Such sources are motivated for plausible inflationary power spectrum
parameters, and while possibly subdominant in terms of the total dark matter
mass within the Galactic bulge, might also account for, or at least not be in
tension with, the Fermi Galactic Centre {\gamma}-ray excess.
