The fruit often used to make a popular type of pie in the United States is the **apple**. Apple pie is a classic American dessert known for its sweet and tangy filling made from sliced apples, sugar, and spices like cinnamon and nutmeg. It typically features a flaky pastry crust that encases the filling. Apple pie is not just a beloved treat; it holds cultural significance as a symbol of American comfort food, often associated with family gatherings and celebrations, particularly during holidays like Thanksgiving. Variations exist, incorporating different types of apples and crust styles for diverse flavors.