Dream Sauce is a substance that makes its first and only appearance in "Zeeky Boogy Doog". It is in a large gray tub and is a cream color. It turns into a Dream Island when heated up enough.
In "Zeeky Boogy Doog", before the intro, after Pin shook the Eiffel Tower, Book falls off and lands in a tub of Dream Sauce in Golf Ball's Underground Factory. Later in the episode, after the challenge was picked to be "make Dream Island", Golf Ball took everyone into her underground factory to make Dream Island with the Dream Sauce. After Golf Ball puts the Dream Sauce in the Oven-o-Tron 2000 Book dies due to no one noticing her in the tub. Golf Ball then pushes the tub over with her legs and the sauce spills, creating Dream Island. Team No-Name's Dream Island later gets blown up by the W.O.A.H Bunch using Bomby.
An empty container of Dream Sauce reappeared in the background in "Don't Dig Straight Down" while Woody and Naily were running to the stairs in Golf Ball's Underground Factory.
Team No-Name pushing the Dream Sauce (and Book) into the Oven-o-Tron 2000.
Golf Ball and Yellow Face right next to the Dream Sauce.
The Dream Sauce turning into No-Name's Dream Island.