Abstract A reversed-phase high-performance liquid chromatography (RP-HPLC) method was developed and compared with a gas chromatography/mass spectrometry (GC/MS) method for determining butylated hydroxytoluene (BHT) in foodstuffs as a result of migration from plastic packaging. Similar extraction procedures were used in both methods. BHT was quantitated using an external standard in the HPLC method and an internal standard in the GC/MS method. Both methods presented good linearity (r2 ≥ 0.9917) and low detection limits. Recoveries obtained with the HPLC method (chicken meat, 95.8%, and Gouda cheese, 83.9%) were better than with the GC/MS method (chicken meat, 85.6%, and Gouda cheese, 71.3%).