A dessert that Worf makes himself for the surprise party welcoming Wesley Crusher back from Starfleet Academy in the episode The Game.
Tarvokian powder cake is a dessert seen in The Next Generation episode The Game, set in 2368.
When Cadet Wesley Crusher returns to the Enterprise-D on leave from Starfleet Academy, the senior staff gather to surprise him. Among the refreshments is a Tarvokian powder cake, and Wesley is astonished to learn that Worf baked it. The Klingon accepts the compliments with his usual gruffness.
The party is one of the last relaxed moments in the episode, since Commander Riker has just come back from Risa with an addictive Ktarian game that soon spreads through the crew. A similarly named Tarvokian pound cake is mentioned elsewhere in the series.