“Tasty Spray” is a substance (designed to be used as a spray, obviously) which was invented by Fenton Crackshell-Cabrera in the 2017 Continuum.
Fenton Crackshell-Cabrera invented Tasty Spray for McDuck Enterprises. One spritz of Tasty Spray can make any food taste like glazed doughnuts.
Fenton showed it to Gandra Dee on their first date. Gandra Dee asked him what about people who don't like glazed doughnuts, causing Fenton to wonder what kind of monster doesn't like glazed doughnuts.
When Gizmoduck fought Mega Beaks later that evening, Fenton used the Tasty Spray to hold Beaks at bay. Beaks disliked the glazed doughnut flavour.
Tasty Spray first appeared in The Dangerous Chemistry of Gandra Dee.