a kind of a flat bread

The main ingredients of milk bread are: 

Wheat flour: Provides the basic structure for the naan, giving it tenderness and texture.

Milk (or milk powder, condensed milk): High in content, it gives the naan a rich milk flavor and contains abundant nutrients.

White granulated sugar: Provides a certain amount of sweetness for the naan.

Yeast: Used for the fermentation of the dough, making the naan softer and more delicious. 

Furthermore, depending on the production method and taste, other ingredients such as eggs, salt, and oil may also be added to the milk naan to enhance its texture and nutritional value.