A Cronut is a croissant- doughnut pastry invented by New York City pastry chef Dominique Ansel of Dominique Ansel Bakery.   The pastry resembles a doughnut and is made from croissant-like dough which is filled with flavored cream and fried in grapeseed oil. A trademark was registered for the name "cronut" at the United States Patent and Trademark Office.  
The Cronut was introduced on May 10, 2013 at Ansel's bakery, Dominique Ansel Bakery, in New York's Soho neighborhood. On the same night, a blogger from Grub Street, the online restaurant blog from New York magazine, reported on the new pastry.   The post resulted in much interest and online circulation, and by the third day, a line of over 100 people had formed outside the shop to buy it.  Leading to the Cronut being named by TIME magazine as one of the best "extremely fun" inventions of 2013 .
Within nine days of introducing the pastry to the Bakery's menu, Ansel filed for a trademark for the "Cronut" name. 
Dominique Ansel released an At-Home Cronut Recipe in his cookbook, Dominique Ansel: The Secret Recipes, in 2015, for bakers to attempt in their own homes. Like the original pastry made at Ansel's bakeries, the process also takes three days. 
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- Staff, TIME (2013-11-13). "The 25 Best Inventions of the Year 2013". TIME. Archived from the original on 2018-01-17. Retrieved 2018-01-17.
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- Tenny Tatusian Cronut in LA: Semi Sweet Bakery to introduce the Crullant Los Angeles Times-Jun 27, 2013
- 'Cronut' craze has made it to Jacksonville June 28, 2013 FCN
- A homemade version of the Cronut Minneapolis Star Tribune-Jun 26, 2013
- "Good Food - From cronut to zonut, pastry fever comes to Sydney". Smh.com.au. 2013-06-14. Retrieved 2014-04-19.
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- Tejal Rao (2013-05-10). "The Cronut Is a Doughnut-Croissant Love Child". The Village Voice. Retrieved 2014-08-13.
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