Choux pastry can be defined as very light and crispy pastry dough
It is made with only a few, basic ingredients which include flour, butter (fat), water and eggs. Choux pastry does not contain raising agents - during cooking, the pastry rises and expands as a result of water turning to steam. As the steam , it pushes the pastry outward, creating a crispy casing and hollow inside. Choux pastry is high in calories, rich in fats and carbohydrates; intake should be regulated.