Chocolate syrup is a condiment that appears in the episode "Valentine's Day."
It is chocolate made in a syrup form, as its name suggests. It appears to have much of the properties to bubble mix, except chocolate syrup, which is just as edible as normal chocolate.
It comes in a black bottle with a purple label that reads the word "chocolate" in white capital letters outlined by dark red, and the word "syrup" in dark red capital letters.
Role in episode
It is used by SpongeBob to bubble-blow chocolate in a way similar to blowing bubbles with bubble mix. He uses the chocolate syrup to blow a chocolate heart to give to Sandy as a Valentine's Day gift.
He also uses it to give a simulated plan of how to give Patrick his Valentine's Day present.