Pastila is a popular Russian sweet that began to be prepared back in the 16th century during the time of Ivan the Terrible in the Russian city of Kolomna. There they dried marshmallows in ovens, and made it from Antonov apples, the yield of which was very high. In the modern world, in many countries, there are a great many analogues of marshmallow. It is prepared from fruits, berries, vegetables, dried fruits, and nuts. Thanks to its natural composition, marshmallow is a product containing vitamins and acids necessary for humans.