We propose to explore the morphology of Ethylammonium Nitrate (EAN, a protic ionic liquid, PIL)-water mixtures. Both components are polar, protic compounds whose structure is hold by an Hydrogen bonding network. The mixtures are mesoscopically homogeneous, but previous studies indicate that the two components tend to maintain their chemical identity at microscopic level. This observation and recent reports indicating a complex behaviour in EAN-rich mixtures, call for exploration as a function of composition, using neutron scattering to complement our X-ray scattering and Raman spectroscopy data sets. Data will be interpreted using the EPSR approach. The understanding of the structural features of these mixtures can help in developing smart, task specific mixtures of PIL and molecular liquids for specific applications.