Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Is the pan made of aluminum or cast iron?
Document: It's really easy to use and really easy to clean up. Much much MUCH better than the cheaper aluminum version of the taiyaki iron that you can find elsewhere on amazon and from other vendors. I really do enjoy this iron and it's nice and sturdy and I know it will last me for many many years, if not a lifetime.
The item is heavy and small. It also doesn't cook evenly. The fishes are tiny and the pan isn't deep enough to support much.
I had been looking for a Taiyaki pan as a gift for a while. As mentioned in other reviews it works great with waffle mix. the mold easily detaches into two halves at the hinge for easier cleaning. Make sure you have some friends or family members nearby to help eat the finished Taiyaki, as you will probably want to make a large batch to get the first time you use it to get the best looking fish.
I was afraid it might make a big mess to use this pan! You use it over a gas-stove flame but I sprayed it well with cooking spray and then poured the batter in, using a spoon to spread it into the corners of the tail. I used a spoonful of homemade custard for the filling and then poured a bit more batter over the top. Close the lid, turn it over and when I lifted the lid to peek it had already beautifully browned the bottom portion of the fish.
One of the best investments I've ever made. It's ADORABLE, and they ended up tasting just like the taiyaki I had in Japan.For all those complaining about the instructions being in Korean, there's now on a sticker in English on the back of the box, complete with cooking ingredients and instructions.The loose hinges are normal since the batter needs room to rise during cooking.I even went ahead and used egg substitute instead of eggs, and agave nectar instead of the sugar and honey.
Would have appreciated some sort of instructions for its use in English. However, I read all the other reviews to see how and what others were doing. I used waffle mix, got it hot and did a thin layer of mix, let it set just a minute then filled the centers of the fish with cherry pie filling, a top layer of the waffle mix and cooked them over a cook top. They were absolutely great!
We have a farm along the river, and lots of visitors in the summer. Instead of boring old waffles or pancakes, we use the same batter in this cooker with frozen blueberries for eyes and a few raisins near the anus. We stick a label over the honey ("fish slime"), the maple syrup, chocolate frosting, and apple butter, and you get the picture.
These pans are exceptional except for a couple small things. The first is that they are very difficult to clean. While you will get the pieces of batter and such out of the fish molds, there will forever more be a brown tinge to the apparatus itself, and burn marks on the outsides. The other problem is that the handles melted a tiny bit, not enough to stop working, but I did notice some red residue on the metal portion of the handles.
The batter can be thicker for a pancake texture or thinner for the crispy waffle-like texture, whatever you or your friends or family, even guests would prefer.I love this thing. It's so fun!
So now I will try it with some cooked apples. I sprinkle cinnamon and powder sugar on top and it is a beautiful dessert. I haven't used a cake mix though I assume you could though you would have to cook it longer and probably in an oven. Waffle mix just works great!
Answer: It's aluminum with a non-stick coating. I would have preferred cast iron, but I'm quite happy with it. Works great.