L.Fudge cookies climbed 23% this year after Kellogg added Butterfinger and S'mores cream filling.

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The recipe called for a simple yellow cake to be split and filled with a whipped-cream filling stabilized with cornstarch and mixed with canned gooseberries.

WSJ: The Cake That Steals the Party

Then he picks up an Oreo, delicately twists it apart, and licks off the white cream filling before returning the cookie to the tray, a satisfied look on his face.

NEWYORKER: Don��t!