What is Bean Sauce ??

What is Bean Sauce :

Sauces are liquids of various thicknesses that are flavored or seasoned to enhance the flavor of food. Sauces can be sweet, sour, spicy, or savory and may be added to the food to become part of a main dish or used as an accompaniment to the food being prepared. Sauces add a variety of features to foods, such as complementing or enhancing flavors, adding an attractive appearance, and/or providing additional texture.
Douchi  also called Chinese fermented black beans. Douchi is made by fermenting and salting soybeans. It is a flavoring most popular in the cuisine of China, and is used to make black bean sauce.
Chinese black bean sauce is a traditional condiment found on the tables of nearly every Chinese restaurant across the globe.
A thick, salty dark-brown sauce made from fermented soybeans. 
Black bean sauce, also referred to
as paste is used extensively in Asian cooking.
The main ingredient, dou chi, is an invaluable ingredient in Chinese culinary culture that has been used since the Han Dynasty.
The American alternative to dou chi is the black turtle bean, or more commonly known simply as the black bean.
Black bean sauce is used in a variety of dishes, from rice and stir fries to steamed pork and fried fish. You can probably purchase black bean sauce in your local supermarket.
Black bean sauce is a delectable dark sauce with Asian roots that you can use to spice up your dishes. It is commonly made of black beans, chicken stock, garlic, chili peppers and other herbs and spices.  
Add black bean sauce over all rice portions of your meals.
Black bean sauce has the perfect amount of thickness to turn plain white rice into a much more interesting side dish. 
You can also cook baked chicken legs and pour the sauce over them about five minutes before removing them from the oven for a wonderful chicken dish.
Also add black bean sauce with Asian soft noodles . Add stir-fry vegetables such as baby corn,
peppers and broccoli to make a healthy meal.
Bean Paste or Sauce is typically sold as a sauce made with either whole beans or crushed (mashed) beans that have been ground into a puree-like texture. The Pastes and Sauces made with whole beans are typically labeled as Bean Sauce or Bean Paste.