President Obama joked Monday night at an LGBT event that the White House pastry chef's pies are so good - well, they must have crack cocaine in them! But first lady Michelle Obama had no taste for the president's not-so wisecrack.

THE PRESIDENT: He's - this is the problem. We call Bill [Yosses] the "Crustmaster" because his pies - I don't know what he does, whether he puts crack in them, or …

THE FIRST LADY: No, he doesn't. There is no crack in our pies.

THE PRESIDENT: I'm just saying that when we first came to the White House, I don't know if some of you remember this - the first year, like, my cholesterol shot up. And the doctor was like, what happened? You had like this really low cholesterol. You were really healthy. And I thought, it's the pie. It's the pie. So we had to establish like a really firm rule about no pie during the week.

Executive pastry Chef Bill Yosses said in March that he would be leaving the White House in June to move back to New York where he will give up his sweet ways for a healthier table.

Telling the New York Times "it's a bittersweet decision," he plans to teach children and adults about eating better.

President Obama has always loved pie. Last year for Thanksgiving, Obama had nine pies, up from his usual six. Time will tell if the new chef can handle the pie requirements of the Obama family.

Yosses first came to the White House under President George W. Bush in 2007.