[Sandwich Ingredients in All Four Corners has been added]
When making sandwiches, the ingredients tend to be concentrated in the center and the four corners tend to be sparse. This Sandwich Guide is the result of such a desire to spread sandwich ingredients to the corners as much as possible.
Place this guide on top of the bread and then feel free to spread the ingredients. Once the ingredients are spread, gently remove the guide and sandwich it between two pieces of bread. This way, you can make a sandwich with lots of ingredients.
You can also place it on top of a frying pan and fry a fried egg in a square. The handle gets hot, so please use tongs. Moreover, if you cook the guide in oil for a few minutes and then leave it to soak until the oil cools down, the oil will coat the egg and prevent it from sticking to the sides after that.
Yamasaki Design Works's Sandwich Guide
https://www.shokunin.com/en/yamasaki/sandwich.html