Prepare the Dough: In a large mixing bowl, combine the flour, sugar, salt, and yeast.

Add the Coca-Cola and vegetable oil. Mix until a dough forms.

Knead the dough for about 10 minutes until smooth and elastic.

First Rise: Lubricate the dough with vegetable oil and place it in a bowl.

Cover and let it rise for 30 minutes.

Prepare the Filling: In a bowl, mix the grated cheese and cottage cheese together.

Second Rise: Punch down the dough and divide it into portions.

Flatten each portion, add some cheese filling, and seal the edges.

Let the filled dough rest for 10 minutes.

Prepare for Baking: Preheat your oven to 170°C (340°F).

Shape the dough into a loaf or rolls and place on a baking sheet.

Brush the top with the egg yolk and milk mixture.

Bake: Bake in the preheated oven for 35 minutes or until golden brown.

Let the bread cool slightly before serving.