A Krispy Kreme Doughnuts logo is pictured in Burbank, California, U.S., July 1, 2021. REUTERS/Mario Anzuoni

A variety of doughnuts is pictured at a Krispy Kreme Doughnuts store in Burbank, California, U.S., July 1, 2021. REUTERS/Mario Anzuoni

An employee holds a Holiday variety box at a Krispy Kreme Doughnuts store in Burbank, California, U.S., July 1, 2021. REUTERS/Mario Anzuoni

A variety of doughnuts is pictured at a Krispy Kreme Doughnuts store in Burbank, California, U.S., July 1, 2021. REUTERS/Mario Anzuoni

A variety of doughnuts is pictured at a Krispy Kreme Doughnuts store in Burbank, California, U.S., July 1, 2021. REUTERS/Mario Anzuoni

A general view of a Krispy Kreme Doughnuts store in Burbank, California, U.S., July 1, 2021. REUTERS/Mario Anzuoni

Glazed Krispy Kreme Doughnuts are pictured in Burbank, California, U.S., July 1, 2021. REUTERS/Mario Anzuoni

A Holiday variety box is pictured outside a Krispy Kreme Doughnuts store in Burbank, California, U.S., July 1, 2021. REUTERS/Mario Anzuoni

A person enters a Krispy Kreme Doughnuts store in Burbank, California, U.S. July 1, 2021. REUTERS/Mario Anzuoni

Girl wearing a protective mask stands near the display window of a doughnut shop, amid the coronavirus disease (COVID-19) pandemic in Cikarang, Bekasi, West Java province, Indonesia, June 5, 2021. REUTERS/Willy Kurniawan

Aachen's city carnival enthusiast, Uwe Hahn, serves doughnuts while celebrating the traditional "Rosenmontag" (Rose Monday) carnival at home, in Dallgow-Doeberitz, Germany, February 15, 2021, despite celebrations being cancelled due to the coronavirus disease (COVID-19) pandemic. REUTERS/Fabrizio Bensch

Doughnuts are displayed during Fat Thursday, traditional celebrations when Poles eat doughnuts marking the last Thursday before the start of Lent, at a bakery in Warsaw, Poland February 11, 2021. REUTERS/Kacper Pempel

A courier from Uber Eats checks an order as he picks up doughnuts during Fat Thursday, traditional celebrations when Poles eat doughnuts marking the last Thursday before the start of Lent, at a bakery in Warsaw, Poland February 11, 2021. REUTERS/Kacper Pempel

Baker Peter Kohl of 'Riedmair' bakery fills up an injection with ginger juice during the production of the so-called RKI doughnuts in form of COVID-19 injections, during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Juergen Wachter, sales manager of 'Riedmair' bakery, transports so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Juergen Wachter, sales manager of 'Riedmair' bakery, checks the quality of a so-called RKI doughnut in form of COVID-19 injection during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Baker Peter Kohl of 'Riedmair' bakery produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Bakery 'Riedmair' produces so-called RKI doughnuts in form of COVID-19 injections during the spread of the coronavirus pandemic in Garching, near Munich, Germany February 11, 2021. REUTERS/Michaela Rehle

Dunkin' Doughnuts are delivered to members of the National Guard ahead of President-elect Joe Biden's Inauguration, in Washington, U.S., January 17, 2021. REUTERS/Caitlin Ochs

A confectioner makes "Abu Dhabi" doughnuts, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, at a patisserie in Jerusalem December 13, 2020. REUTERS/Amir Cohen

A confectioner carries "Abu Dhabi" doughnuts, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, at a patisserie in Jerusalem December 13, 2020. REUTERS/Amir Cohen

A confectioner makes "Abu Dhabi" doughnuts, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, at a patisserie in Jerusalem December 13, 2020. REUTERS/Amir Cohen

Customers take photos of "Abu Dhabi" doughnuts, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, at a patisserie in Jerusalem December 13, 2020. REUTERS/Amir Cohen

Confectioners make "Abu Dhabi" doughnuts, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, at a patisserie in Jerusalem December 13, 2020. REUTERS/Amir Cohen

Customers buy "Abu Dhabi" doughnuts, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, at a patisserie in Jerusalem December 13, 2020. REUTERS/Amir Cohen

The "Abu Dhabi" doughnuts, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, are seen at a patisserie in Jerusalem December 13, 2020. REUTERS/Amir Cohen

A customer takes a photo of the "Abu Dhabi" doughnut, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, at a patisserie in Jerusalem December 13, 2020. REUTERS/ Amir Cohen

A customer holds the "Abu Dhabi" doughnut, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, at a patisserie in Jerusalem December 13, 2020. REUTERS/ Amir Cohen

A confectioner places a topping on the "Abu Dhabi" doughnut, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, at a patisserie in Jerusalem December 13, 2020. REUTERS/Amir Cohen

A confectioner places a topping on the "Abu Dhabi" doughnut, a date-flavoured confectionery inspired by Israel's new relations with the United Arab Emirates, as doughnuts are a popular fare in Israel during the current holiday of Hanukkah, in which Jews traditionally eat deep-fried delicacies, at a patisserie in Jerusalem December 13, 2020. REUTERS/Amir Cohen

U.S. Senator Susan Collins (R-ME) visits Congdon's Doughnuts in Wells, Maine, U.S., October 27, 2020. REUTERS/Elizabeth Frantz

Election themed donuts are pictured for sale at Voodoo Doughnut shop during the U.S. presidential election in the Jurassic Parking structure at Universal Studios Hollywood during the outbreak of the coronavirus disease (COVID-19), in Universal City, California, U.S., October 26, 2020. REUTERS/Mario Anzuoni

Election themed donuts are pictured for sale at Voodoo Doughnut shop during the U.S. presidential election in the Jurassic Parking structure at Universal Studios Hollywood during the outbreak of the coronavirus disease (COVID-19), in Universal City, California, U.S., October 26, 2020. REUTERS/Mario Anzuoni

Visitors enjoy doughnut-shaped pool, amid the coronavirus disease (COVID-19) outbreak, at Toshimaen amusement park which will close 94 years after it first opened with part of the site to be turned into a new Harry Potter theme park in 2023, in Tokyo, Japan August 11, 2020. Picture taken August 11, 2020. REUTERS/Issei Kato

A drive-thru Krispy Kreme at Trafford Park is seen after opening their store to serve NHS staff and essential workers free doughnuts as the spread of the coronavirus disease (COVID-19) continues, Manchester, Britain, April 17, 2020. REUTERS/Molly Darlington

A sign is seen at a drive-thru Krispy Kreme at Trafford Park after opening their store to serve NHS staff and essential workers free doughnuts as the spread of the coronavirus disease (COVID-19) continues, Manchester, Britain, April 17, 2020. REUTERS/Molly Darlington

A woman in a car looks at a menu at a drive-thru Krispy Kreme at Trafford Park after opening their store to serve NHS staff and essential workers free doughnuts as the spread of the coronavirus disease (COVID-19) continues, Manchester, Britain, April 17, 2020. REUTERS/Molly Darlington

A man collects doughnuts from a drive-thru Krispy Kreme at Trafford Park after opening their store to serve NHS staff and essential workers free doughnuts as the spread of the coronavirus disease (COVID-19) continues, Manchester, Britain, April 17, 2020. REUTERS/Molly Darlington

Carmen Gray and Bridget Parkhill share a laugh after bringing a doughnut to their mother, Susan Hailey, 76, who is recovering from coronavirus disease (COVID-19) and is a resident at Life Care Center of Kirkland, the long-term care facility linked to confirmed coronavirus cases in the state, during the coronavirus disease (COVID-19) outbreak, in Kirkland, Washington, U.S. March 21, 2020. REUTERS/David Ryder

Carmen Gray holds a doughnut to bring to her mother, Susan Hailey, 76, who is recovering from coronavirus disease (COVID-19) and is a resident at Life Care Center of Kirkland, the long-term care facility linked to confirmed coronavirus cases in the state, during the coronavirus disease (COVID-19) outbreak, in Kirkland, Washington, U.S. March 21, 2020. REUTERS/David Ryder

Bridget Parkhill and Carmen Gray buy a doughnut to bring to their mother, Susan Hailey, 76, who is recovering from coronavirus disease (COVID-19) and is a resident at Life Care Center of Kirkland, the long-term care facility linked to confirmed coronavirus cases in the state, during the coronavirus disease (COVID-19) outbreak, in Kirkland, Washington, U.S. March 21, 2020. REUTERS/David Ryder

Bridget Parkhill and Carmen Gray buy a doughnut to bring to their mother, Susan Hailey, 76, who is recovering from coronavirus disease (COVID-19) and is a resident at Life Care Center of Kirkland, the long-term care facility linked to confirmed coronavirus cases in the state, during the coronavirus disease (COVID-19) outbreak, in Kirkland, Washington, U.S. March 21, 2020. REUTERS/David Ryder REFILE - CORRECTING DATE

Woman buys doughnuts during traditional Fat Thursday when Poles eat doughnuts marking the last Thursday before the start of Lent, at a bakery in Warsaw, Poland February 20, 2020. REUTERS/Kacper Pempel

Doughnuts are displayed during traditional Fat Thursday when Poles eat doughnuts marking the last Thursday before the start of Lent, at a bakery in Warsaw, Poland February 20, 2020. REUTERS/Kacper Pempel

Doughnuts are displayed during traditional Fat Thursday when Poles eat doughnuts marking the last Thursday before the start of Lent, at a bakery in Warsaw, Poland February 20, 2020. REUTERS/Kacper Pempel

Woman points doughnuts during traditional Fat Thursday when Poles eat doughnuts marking the last Thursday before the start of Lent, at a bakery in Warsaw, Poland February 20, 2020. REUTERS/Kacper Pempel

People eat doughnuts during traditional Fat Thursday, marking the last Thursday before the start of Lent, at a bakery in Warsaw, Poland February 20, 2020. REUTERS/Kacper Pempel

A doughnut with a receipt made of sugar icing is pictured at a bakery in Moosinning, near Munich, Germany January 29, 2020, as a reaction to a new German law that legally obliges all retailers to issue receipts to their customers. REUTERS/Michael Dalder

Master baker Ludovic Gerboin holds a doughnut with a receipt made of sugar icing in Moosinning, near Munich, Germany January 29, 2020, as a reaction to a new German law that legally obliges all retailers to issue receipts to their customers. REUTERS/Michael Dalder

Master baker Ludovic Gerboin holds a doughnut with a receipt made of sugar icing in Moosinning, near Munich, Germany January 29, 2020, as a reaction to a new German law that legally obliges all retailers to issue receipts to their customers. REUTERS/Michael Dalder