Choux pastry is a form of pastry that is made with just flour, water or sometimes milk, butter and eggs. It doesn’t use a rising agent like cake does. It can also be made without sugar, as oftentimes the sweetness comes from the filling. Choux pastry is usually used to make baked goods like eclairs and profiteroles. Choux means “cabbage” in French referring to the irregular shape the pastry takes when baked. Choux pastry is delicate and flaky and is common in European cooking and baking.