Eggplant is an annual plant of the Potatoes family. The vegetable is widespread in cooking. Eggplant can be consumed with or without the peel. The removing on his peel helps reduce the bitterness. is an annual plant of the Potatoes family. The vegetable is widespread in cooking. Eggplant can be consumed with or without the peel. The removing on his peel helps reduce the bitterness.