Lucky Charms Cereal Boxes Full of Just Marshmallows

General Mills will be giving away 10,000 boxes of Marshmallow Only Lucky Charms—that’s right, none of that crunchy oat cereal to get in the way. It’s all marshmallows, all the time.

This is a limited-time offering, and consumers will need to buy a box of regular Lucky Charms to get a promo code that they then need to enter on the Lucky Charms website for a chance to win.