We　report　direct　writing　of　metallic　photonic　crystals　(MPCs)　through　a　single-shot　exposure　of　a　thin　film　of　colloidal　gold　nanoparticles　to　the　interference　pattern　of　a　single　UV　laser　pulse　before　a　subsequent　annealing　process.　This　is　defined　as　interference　ablation,　where　the　colloidal　gold　nanoparticles　illuminated　by　the　bright　interference　fringes　are　removed　instantly　within　a　timescale　of　about　6　ns,　which　is　actually　the　pulse　length　of　the　UV　laser,　whereas　the　gold　nanoparticles　located　within　the　dark　interference　fringes　remain　on　the　substrate　and　form　grating　structures.　This　kind　of　ablation　has　been　proven　to　have　a　high　spatial　resolution　and　thus　enables　successful　fabrication　of　waveguided　MPC　structures　with　the　optical　response　in　the　visible　spectral　range.　The　subsequent　annealing　process　transforms　the　grating　structures　consisting　of　ligand-covered　gold　nanoparticles　into　plasmonic　MPCs.　The　annealing　temperature　is　optimized　to　a　range　from　250　to　300　degrees　C　to　produce　MPCs　of　gold　nanowires　with　a　period　of　300　nm　and　an　effective　area　of　5　mm　in　diameter.　If　the　sample　of　the　spin-coated　gold　nanoparticles　is　rotated　by　90　degrees　after　the　first　exposure,　true　two-dimensional　plasmonic　MPCs　are　produced　through　a　second　exposure　to　the　interference　pattern.　Strong　plasmonic　resonance　and　its　coupling　with　the　photonic　modes　of　the　waveguided　MPCs　verifies　the　success　of　this　new　fabrication　technique.　This　is　the　simplest　and　most　efficient　technique　so　far　for　the　construction　of　large-area　MPC　devices,　which　enables　true　mass　fabrication　of　plasmonic　devices　with　high　reproducibility　and　high　success　rate.