First, prepare all the necessary ingredients for cooking. Remove the eggs and jam from the refrigerator in advance, they should be at room temperature. In a bowl, break the eggs, add salt, sugar and whisk everything with a whisk until fluffy. If you have a mixer, it will take 1-2 minutes. Pour in the milk, vegetable oil (odorless) and mix everything together. It is vegetable oil that will make the dough tender and not dry.