'Normal' yellow onions are used for this, which are put in the oven for weeks. The result is a black onion, which, like black garlic, is a natural flavouring that is bursting with healthy properties. Unique and mild in flavour, creamy in texture. The flavour can best be described as: subtle
hints of soy, balsamic and raisins. This makes black onion an attractive delicacy.
 
Black onion is a natural flavor enhancer! It has a delicious full umami flavor. 
 
100% Natural Black Onion is produced by fermenting the standard yellow onion through a carefully controlled heating process in a few weeks. Apart from a little bit of heat and care, nothing is added.