For a decadent and indulgent taiyaki experience, try making taiyaki with Nutella filling. Here's what you'll need: - 1 cup all-purpose flour - 1/4 cup sugar - 1/2 teaspoon baking powder - 1/4 teaspoon salt - 1 egg - 3/4 cup milk - 1/2 teaspoon vanilla extract - Nutella To make Nutella-filled taiyaki, start by preparing the taiyaki batter as mentioned in the previous recipes. Preheat the taiyaki pan and grease it with cooking spray or oil. Pour a spoonful of batter into each fish-shaped mold, then add a dollop of Nutella in the center. Cover the Nutella with another spoonful of batter. Cook the taiyaki until it turns golden brown and crispy on both sides. Remove from the pan and let it cool slightly before serving. The combination of the crispy taiyaki shell and the gooey, chocolatey Nutella filling is simply irresistible. Enjoy this Nutella-filled taiyaki as a special treat or dessert!