Snap, crackle, pop!

After announcing that she and hubby Mike Comrie, 30, are expecting their first child, Hilary Duff is ready to share the details with her fans -- including her most recent stick-to-your-bones snack craving!

"Now I can finally talk about my cravings! Today it was rice crispy treats! Trying really hard to give them ALL away!!!" Duff, 23, tweeted on August 15, along with a Twitpic showing a freshly made batch of the gooey marshmallow treats.

Duff isn't the first celeb mommy-to-be to share her pregnancy food fancies. For Alyssa Milano, who is due in mid-September, it was a certain veggie. "Broccoli! I can't even consider that a craving because it's so odd. I can't get enough broccoli!" the 38-year-old star told Us Weekly in February.

On the more weird-and-wacky front, Kourtney Kardashian, 32, admitted that she had a hankering for some unique concoctions while pregnant with son Mason, 20 months. "My most intense craving was a waffle with butter and syrup. Weirdest maybe a relish and mayo sandwich, but only once thank god!" she Tweeted in October 2009.

Duff announced her pregnancy news via her official website on August 14 -- an extra-sweet touch to her and Comrie's one-year anniversary.

"I can't believe it has already been a year. Time really flies when you're having fun! We also want to share the exciting news that baby makes three! We are extremely happy and ready to start this new chapter of our lives. Thanks to everyone for the continued love and support throughout the years!"