The Sweetie Patrol Cookies themselves resemble plain cookies. The box is light blue in color with the word "Cookies" on it in dark red font.
Plankton, disguised as a Sweetie Patrol girl, attempts to sell these cookies to Gary in an attempt to get the Krabby Patty Secret Formula. He wants to hide them in a "secret spot" but Gary doesn't fall for it and moves the couch with Plankton on it outside. Plankton is upset his plan failed and throws the cookies onto the ground, causing an explosion. It is revealed that Plankton used nitroglycerin as a substitute for vanilla extract.