The discovery of previously unknown chocolate flint outcrops in the Kraków-Częstochowa Upland (only the second known area after that in the Holy Cross Mountains) has undermined our seemingly solid knowledge of the prehistoric economy, which is based on the distribution pattern of this important raw material. The authors present new interdisciplinary research focused on the prehistoric mining of chocolate flint in the Kraków-Częstochowa Upland, the distribution of chocolate flint artefacts within the Upland and beyond, and methods to distinguish this material from the Holy Cross Mountains chocolate flint.