Crêpes with Apple Filling ("Nalistniki")

Also called "Nalesniki".
Ingredients:

• 2 eggs
• 2-3 tablespoons sugar
• 1-2 teaspoons pure vanilla extract
• Pinch of salt
• 1/2 liter (1/2 quart) milk
• 1.5-2 cups all-purpose flour
• Vegetable oil
• 1 table spoon butter

Filling:

• 4-5 apples
• Sugar to taste

Directions:

1. Whisk the eggs well with sugar; add salt, vanilla, and milk.
2. Gradually add flour, melted butter and mix well. The batter must be thin.
3. Heat the skillet, brush it with oil, and pour the batter with a ladle. (Pour a thin layer of batter onto the skillet).
4. When the bottom of the crepe is golden-brown, carefully flip it.
5. Put 2-3 teaspoons of apple filling and 1-2 teaspoons sugar on each crêpe (crepe) (close to the edge); roll it, tuck in the ends, and finish rolling.
6. Fry just one side (where the edge is after the final roll, so the frying will seal it) on low heat until golden-brown. ENJOY!

Filling:

1. Peel and core the apples, take out the seeds.
2. Grate the apples coarsely.