Updated

Any fan of Cookie Monster on Sesame Street knows that "C" is for cookie.

But at the Obama White House, "A" may be for acorn -- as in acorn cookies served at Monday's annual Christmas party.

The chocolate cookies shaped like an acorn were quite a hit with Rep. Steve King, R-Iowa.

"I didn't expect to see such stark symbolism," King said in an e-mail.

President Obama worked with the community organizing group ACORN in the mid-90s. But now ACORN faces a host of allegations related to voter fraud in the 2008 election and has been weakened by an undercover expose that shows employees offering tax advice to a couple posing as a pimp and prostitute.

The irony of the White House dishing out acorn-shaped chocolate cookies seemed a little, well, "nutty" to King. The Iowa Republican is one of the loudest voices calling for Congress to investigate ACORN.

King pocketed several of the acorn cookies at the White House soiree and even stowed a few at home in his freezer. King even delivered a real acorn to House Judiciary Committee John Conyers, D-Mich., in an effort to launch a dialogue about the organization's legal woes.

"Bill Clinton redefined a two and a three-letter word," King said, a reference to Clinton's denial of the Lewinsky scandal . "But from the man who wrote 'The Audacity of Hope,' we were served the very redefinition of the word 'audacity.'"