We demonstrate on-chip hybrid integration of chalcogenide glass waveguides and quantum cascade lasers (QCLs). Integration is achieved using an additive solution-casting and molding method to directly form ${\mathrm{As}}_2{\mathrm{S}}_3$ strip waveguides on an existing QCL chip. Integrated ${\mathrm{As}}_2{\mathrm{S}}_3$ strip waveguides constructed in this manner display strong optical confinement and guiding around $90°$ bends, with a NA of 0.24 and bend loss of $12.9\mathrm{dB}$ at a $1\mathrm{mm}$ radius ( $\lambda =4.8\mathrm{\mu m}$ ).