What bakery item makes the most money?

In the vibrant and dynamic world of the baking industry, I often find myself pondering a perplexing question: which bakery item generates the most revenue? Could it be the indulgent chocolate cake, seducing customers with its rich layers of cocoa? Or perhaps it's the timeless classic of the croissant, enticing morning patrons with its buttery goodness? It might even be the simple yet satisfying sandwich cookie, a staple for afternoon tea breaks. The answer, I suspect, lies in the intersection of taste, trend, and cost-efficiency. As a keen observer of consumer behavior, I'm eager to delve deeper into this enigma and uncover the mystery behind which bakery item truly reigns supreme in terms of profitability.