Yellow Sheet Cake with Chocolate Frosting

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Appears in Cook's Illustrated September/October 2020, America's Test Kitchen TV

SERVES12 to 15

TIME1 hour, plus 2½ hours cooling

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WHY THIS RECIPE WORKS

For a tender cake with a fine, plush texture, we started by using bleached cake flour. Its altered starch is more absorbent than the starch in unbleached flour, so it can accommodate more liquid, sugar, and fat (we use butter for flavor and...

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