Marjoram is made from the short, pale-green leaves of a shrub cultivated throughout Europe for centuries. Closely related to oregano, marjoram has a flavour resembling that of mint and basil. Marjoram is used in many tomato-based dishes, but it has a flavour that complements just about any food. It is used widely in Mediterranean cooking and makes an excellent flavouring for oil and vinegar. This herb can be used interchangeably with oregano. Buy it fresh when possible.