Giada De Laurentiis' costly divorce finalized

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Food Network star Giada De Laurentiis debuts her new restaurant GIADA in Las Vegas

Giada De Laurentiis is officially divorced... and it's going to cost her.

The Food Network star and her husband Todd Thompson announced their "amicable separation" in December of last year. As of Thursday, they're officially no longer married, according to People.

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The couple had no prenup, however, when they got married in 2003. So, per California state law, the celebrity chef must split the profits 50/50 with Thompson from every cookbook she published during their marriage, as well as half of any unpaid advances from cookbooks she's working on now. People reports those profits alone are worth about $5 million.

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In addition, he gets to keep their $3.2 million home in Pacific Palisades, and De Laurentiis must pay him $9,000 a month in child support.

The couple will share custody of their 7-year-old daughter, Jade.

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