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In 2015, just 10 lucky fans had the chance to win a “Marshmallow-Only” Lucky Charms box.

Now, one of General Mills' most beloved-- and colorfully sweet-- brands is expanding its limited-edition offer with a 10,000-box giveaway through December 2017.

According to the cereal giant, specially-marked boxes of Lucky Charms will soon be available at retailers across the United States.

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On marked boxes, there will be a 14-digit code inside the back panel that can be entered online at MarshmallowOnly.com to see if you’re one of the “Marshmallow-Only” box winners. If you’re one of the lucky winners, you’ll receive the brightly colored cereal box filled to the brim with those teeny, tiny slightly crunchy marshmallows.

“Fans of Lucky Charms are obsessed with our marshmallows,” Priscilla Zee, senior marketing manager at General Mills, said in a statement.

“We were overwhelmed with calls, e-mails, and tweets last year, asking for a box of our Lucky Charms marshmallows. So this year we wanted to give them even more opportunities to win."

Are you ready to catch some Lucky Charms?