Final answer:
A croissant is a pastry created by layering dough with butter, well-known for its flaky texture and crescent shape.
Step-by-step explanation:
A pastry made by rolling dough out in layers with butter in between is known as a croissant. This delicious, flaky treat has an interesting backstory associated with its creation. According to legend, the croissant was invented during the siege of Vienna to symbolize a victory over the Ottoman Empire, where bakers, working in the early hours of the morning, heard the enemy and alerted the city.