Amba is a special type of sauce or condiment that is popular in Middle Eastern cuisine. It's made from mangoes that have been pickled in a mixture of vinegar, spices, and salt.
To make amba, ripe mangoes are peeled and cut into small pieces or thin slices. Then, they are mixed with a combination of vinegar, mustard powder, fenugreek, turmeric, and salt. This mixture is left to ferment for a few days, which means that the bacteria and yeast present in the mixture will start breaking down the mangoes and creating new flavors.
After a few days, the mixture is blended until it becomes a thick, smooth paste. Then, it is ready to be used as a condiment. Amba is typically served alongside falafel or other fried and savory dishes. Its tangy, slightly spicy flavor is a great complement to foods that are rich and savory.
In summary, amba is a special type of sauce made from pickled mangoes that has a tangy, slightly spicy flavor. It's used as a condiment and is commonly served alongside fried and savory Middle Eastern dishes.