Add the tomatoes, vinegar, soy sauce, mustard, salt, chipotle powder ... until thickened (to a ketchup-like consistency), about 30 minutes. Cool slightly and transfer to a blender.
For nearly thirty years, we’ve all been led to believe if we wanted to get our hands on dijon ketchup, it’d cost us at least a million dollars. The fabled condiment burst onto the scene in the ...