Krispy Kreme
A customer buys Krispy Kreme doughnuts at a Walmart to Go convenience store which is open on a trial basis in Bentonville, Arkansas, June 5, 2014. REUTERS/Rick Wilking

Krispy Kreme is celebrating its 81st birthday on Friday and will be debuting a brand new birthday-flavored glazed confetti doughnut. As a birthday offer, the chain will be selling a dozen doughnuts for $1.

Fans need to share their Krispy Kreme birthday celebrations with the hashtag #KrispyKremeBirthday and tag @krispykreme on social media.

While the treats for $1 is available only on Friday, the special flavor will be sold for a limited time and they suspect supplies will only last until Aug. 2.

“One of our favorite times during the year is when we get to celebrate our birthday with our fans,” Krispy Kreme chief executive officer Mike Tattersfield said in a release. “In addition to offering a delicious dollar deal on an extra dozen of our Original Glazed Doughnuts, we’ve ‘birthday-ed’ up our awesome Original Glazed Doughnut, creating a whole new experience.”

The new birthday doughnut is made with cake-flavored dough and has rainbow sprinkles mixed into it. The doughnut is then coated in the classic Original glaze and then topped off with some extra rainbow sprinkles. This doughnut will be available in participating shops for a limited time starting Friday, the restaurant wrote on social media.

Krispy Kreme has come a long way since it was founded by Vernon Rudolph, who bought a secret yeast-raised donut recipe from a New Orleans French chef. The first store in 1937 was not opened to the public and was only used as a bakery. Today, the brand has over 1,000 locations and was recently voted 2018’s Brand of the Year for the coffee shop category in Harris Poll’s 30th annual EquiTrend.

In the 1950s, Krispy Kreme planned to invent machines that could control the doughnut-making process and for this, the company started working with engineers.

In 1997, Krispy Kreme was welcomed for an exhibit, which would feature the company's artifacts, in the Smithsonian Institution’s National Museum of American History as a part of the American icons exhibitions.