Amchur powder, also known as dried mango powder, is a popular spice used in Indian cuisine. It is made from raw green mangoes that are peeled, sliced, sun-dried, and then ground into a fine powder. Amchur powder has a tangy and sour flavor, similar to tamarind. It is commonly used as a souring agent in various dishes, especially in vegetarian and vegan recipes, to add a citrusy and acidic taste. It acts as a natural flavor enhancer and can be used in marinades, curries, chutneys, and pickles.