Given that "sugar and spice" is a familiar phrase, perhaps the user is referring to a creative or educational concept involving sugar and spice in a quartet (four parts) or a group. Maybe they're interested in a story, a song, a recipe, or a cultural topic that combines sugar and spice in four elements.
Alternatively, maybe it's a mix-up of "quartile" and "additive," but that's a stretch. Another thought: The phrase might be a play on "sugar and spice and everything nice" followed by a misspelled word. Maybe the user meant "quadrille," a dance, or "quad," but then why "qartulad"? sugar and spice qartulad
Another angle: The phrase "sugar and spice" often relates to girls in the nursery rhyme "This is the House That Jack Built." So maybe "sugar and spice quartet" refers to four elements associated with this rhyme. Alternatively, a product mix or recipe with four items combining sugar and spice. Given that "sugar and spice" is a familiar