Also known as ABB mustard, this is a specialty from Düsseldorf that has been produced since the early 18th century. The name 'ABB' derives from the initials of company founder Adam Bernhard Bergrath, who also invented the mustard.
This malty brown mustard is made with brown and yellow mustard seeds and mixed with unfiltered Düsseldorf spirit vinegar. The method of production has remained virtually unchanged since 1726, and a 500kg granite millstone is still used to grind the seeds.
In 1884, while he was living in the town of Nuenen, Dutch painter Vincent van Gogh included a gray mustard pot bearing the initials ABB and the anchor symbol into his painting 'Stilleven met flessen en aardewerk' (Still life with bottles and ceramic).