Even baking sheets are treated to the occasional redesign. The latest is the slider. It looks like the offspring of a rimmed baking sheet (or jelly roll pan) and a flat cookie sheet.

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Quarter sheet pans are typically 9 by 13 inches (a standard size for sheet cakes), half sheet pans are 18 by 13 inches (this is the size of most pans described simply as baking sheets) and full ...