Shallots Also Known as Madras Onions.Shallots the most common variety of shallots are similar in appearance to baby onions, but are more oval in shape, and often have a pair of smaller bulbs inside the brown skin. The flesh is usually pinker than that of brown skinned onions. The shallot is a relative of the onion, and tastes a bit like an onion but has a sweeter, milder flavor. They are more expensive than onions. Unlike onions where each plant normally forms a single bulb, shallots form clusters of offsets, rather in the manner of garlic.