Meaning
黄な粉 (きなこ, kinako) is toasted soybean powder — a Japanese food.
What is toasted soybean powder?
Kinako is a powder made from toasted soybeans. It often is used as a garnish for desserts. Its flavor is nutty and reminiscent of roasted peanuts. This word usually is written in hiragana. Kinako is used for many snacks and sweets, such as a topping for mochi and or a coating for various snacks made from puffed rice.