Meringue

...We are tempted to comment, in these last days before the war, on the U.N., and the French, and the Democrats. But the war itself will clarify who was right and who was wrong about weapons of mass destruction. It will reveal the aspirations of the people of Iraq, and expose the truth about Saddam's regime...

William Kristol, The Weekly Standard, March 17, 2003

...Neoconservative journalist and commentator William Kristol was about 30 minutes into his speech on international affairs when a slender young man crossed the stage of Goddard Auditorium and slung the ersatz pastry into his face...

Palladium-Item, March 30, 2005

I bet the real pie on his face looks very nice next to the metaphorical pie on his face.

UPDATE: Here's a link to some pictures and a movie of the pie-ing. I must add that I am objectively pro-pie-in-the-face. The recipient's political views don't matter, and neither does the flavor of the pie.