National Croissant Day is celebrated annually on January 30th in the United States. This day honors the delicious, flaky pastry known as the croissant, which is made from a layered dough that is rolled and folded with butter. The result is a light and airy texture that many people enjoy for breakfast or as a snack. The croissant has its origins in Austria, where a similar pastry called the kipferl was made. It became popular in France in the 19th century, where it was perfected and became a staple in French bakeries. National Croissant Day encourages people to indulge in this delightful treat.