A Bundt cake is a cake that is baked in a Bundt pan, shaping it into a distinctive doughnut shape. Bundt cakes do not conform to any single recipe; instead, their characterizing feature is their shape. A Bundt pan generally has fluted or grooved sides, but its most defining design element is the central tube or "chimney" which leaves a cylindrical hole through the center of the cake. The design means that more of the mixture touches the surface of the pan than in a simple round pan, helping to provide faster and more even heat distribution during baking.

Today, there is no single recipe for "Bundt cake." Recipes range from spicy pine-nut-and-chili cakes to ice cream and fruit concoctions. Nordic Ware and other vendors sell Bundt-style pans in a variety of novelty shapes,

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