National Boston Cream Pie Day 2025 National. Thursday is national pie day, which celebrates one of the nation’s favorite desserts. Today we're celebrating national boston cream pie day, the perfect excuse to indulge in a deliciously decadent treat.

This recipe combines the traditional layers of sponge cake, creamy custard, and rich chocolate with. More a cake than a pie, this boston creation has become a favorite dessert item in restaurants and households nationwide.