National Cupcake Day takes place on Sunday, December 15, and to celebrate, Sprinkles Cupcakes will have a limited-edition flavor for customers all weekend long.

The National Cupcake Day cupcake is a strawberry cake studded with rainbow sprinkles, filled with sprinkles and topped with cream cheese frosting, a rainbow sprinkle rim, and a red heart decoration. It will be available from Friday, December 13 through Sunday, December 15.

Guests at any of Sprinkles 22 bakeries that weekend can also take part in a unique augmented reality (AR) experience. Using their smartphones, they can unlock a secret discount code to receive $1 off of any cupcake (limit 1 per guest). Sprinkles partnered with the creative development team at Livit Media to create the virtual experience.

Additionally, Sprinkles is launching its annual promotion to give fans free cupcakes for a year. For each cupcake purchased this weekend, members of the Sprinkles Perks loyalty program will receive one entry into the giveaway. 22 guests will be randomly selected to win.