Onion are round vegetables that have a brown skin that grows underground. It has many white layers on its inside which have a strong, sharp pungent smell and taste. Onions are a staple ingredient in many countries, where most dishes are started off with sauteeing onions. Onions are slightly bitter and pungent smelling that leave an aftertaste and smell lingering on for long, but has many health benefits when consumed in this form. These bulbs when roaster or cooked, become soft and take on a caramalized sweet taste and gets rid of the pungency.