Oil cake

Oil cake is apparently a simply made Cybertronian dessert. One assumes it goes down smooth.

Fiction

Generation 1 cartoon continuity

The Transformers cartoon

After spying on a security guard who was entering an access code, Reflector announced that stealing the antimatter formula would be a piece of oil cake. Unfortunately the Autobots got wind of the plan, so it was somewhat more difficult for the Decepticons than expected. Roll for It

Wings Universe

Wings Universe is based on the Generation 1 cartoon, but deviates from it in cosmetic ways and continuity points.

According to Jazz, kicking Megatron's can would be a piece of oil cake. Trailbreaker suggested said oil cake would have iron shavings on top. Battle Lines, Part 2