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Donuts and pastries explained

Plain-English explainers for cream-filled donuts, long johns, paczki, croissants and the other pastries found in a classic American bakery case.

Checked November 13, 2026Independent guide

All guides in Donuts and pastries explained

A powdered sugar donut torn open to show thick vanilla cream filling beside a glazed donut on a white plate

Donuts and pastries explained

Long john donut: the oblong bar donut explained

A long john donut is a rectangular yeast donut, usually topped with chocolate or maple icing. Learn the name, toppings, fillings and how it differs from an eclair.

· 5 min read

A powdered sugar donut torn open to show thick vanilla cream filling beside a glazed donut on a white plate

Donuts and pastries explained

Boston cream donut: what is inside and how it differs

A Boston cream donut is a filled donut with vanilla custard and chocolate glaze. Learn the filling, the name's origin and how it differs from other cream donuts.

· 6 min read

Independent guide. Not the official website of Holmesburg Bakery.