Imagine you are at a fair or a carnival, and you see a little stall with a friendly person cooking something special. They have a hot plate and a metal mold with little round holes in it. They pour a thick batter made of special flour, eggs, and dashi (which is a kind of soup stock) into the mold and cook it until it's golden brown.
When the little round cakes are ready, the cook takes them out of the mold with chopsticks and dips them in a special sauce made of dashi, soy sauce, and Mirin (which is a kind of sweet sake). Finally, they sprinkle some bonito flakes (which are dried, fermented and smoked skipjack tuna flakes) and chopped green onions on top.
These little cakes are called Akashiyaki, which is a special dish from the city of Akashi, Japan. They are kind of like small, savory pancakes or dumplings that are crispy on the outside, but soft and fluffy on the inside. They have a mix of sweet and salty flavors and are usually served with a cup of cold beer or sake. They are delicious and fun to eat, just like a carnival treat!