Algorithm Soup is a soup. According to Stella, it tastes like homework.
Algorithm Soup is composed of green liquid and orange and green numbers, variables, subtraction signs, equals signs, and radicands floating in it. There are also elongated red squircles floating in it.
In "A Monster Crush," Electronio and Magnethia serve this food to the Winx and Timmy. Everyone eats it, but Stella expresses her disgust by saying that it tastes like homework, prompting Magnethia to state that tasting like homework is the point of the soup. Stella, not wanting to offend the hosts, continues eating it, albeit with difficulty.