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Costco's croissants are already delicious when sold plain, but the bakery staple has just received a twice-baked chocolate ...

Costco is getting into the spirit of St. Patrick's Day, releasing a green, new flavor to its lineup of sundaes.

A buttery, flaky chocolate treat worth noticing.

There's a new Costco sundae at the food court, and it's a delicious mint chocolate mix that's just in time for St. Patrick's ...

Costco has a new food court dessert that is making waves on social media: the double chocolate mint sundae. Here are our ...

The green treat launched for a limited time on Feb. 16, getting a slight jump on McDonald's Shamrock Shake. According to the ...

Costco is offering a new treat at its food courts that rivals the ever-popular McDonald's Shamrock Shake. (AP Photo) ...

The layered sundae is perfect for spring.