There is significant interest in creating novel materials through physical, rather than chemical, methods. In this respect, taking a rapidly crystallizing material that is generally used in the crystalline state, one may find advantages if the material can be made vitreous by avoiding crystallization. To this end, we have begun a series o fworks to attempt to make energetic materials that are vitreous in nature with the intent that the defect nature of the glassy material may provide improved properties, such as improved handling and stability or enhanced combustion properties.In the present work, we use a baseline energetic material, trinitrotoluene (TNT) to demonstrate that such a material can be made vitreous, i.e., can be made into a glass. The method chosen for the demonstration is to use flash differential scanning calorimetry(DSC) to provide a means of cooling the material at a sufficiently high rate that vitrification will occur rather than crystallization.As shown subsequently, the rate at which TNT can be cooled to form a glass is outside the range of cooling rates achievable by normal DSC, but not so high that the flash-type of chip calorimeter is pushed to its limits, i.e., the required cooling rate is nearer to 10 K/s rather than 104K/s that can be achieved with such a calorimeter. In addition to the first direct observation and reporting of the glass transition temperature behavior of TNT, we also find that the crystallization behavior of the TNT from the glassy state is different depending on the cooling rate used to make the glass. While thisis a finding that has been seen in, e.g., metallic glass-formers, itsobservation in the mono-component TNT suggests that fully under-standing such phenomena will provide a potential path to controlmaterial behavior by varying the route to vitrification