A method of enhancing development of chocolate flavors, comprising adding an oil and fat composition for chocolate containing a specific amount of malonylisoflavone glycosides that are poorly soluble in oil and fat, and a method of producing the oil and fat composition for chocolate comprising a specific amount of malonylisoflavone glycosides. The oil and fat composition for chocolate is capable of enhancing chocolate flavors (a good milky taste, a sweet taste, a cacao flavor, etc.) without affecting the physical properties of chocolate.
