Lau is a kind of bread that comes from the island of Gotland, which is a place in Sweden. It has a very unique way of being made that makes it special.
First, people gather sea weed that is washed ashore on the island. This seaweed is called lithothamnion and it grows in the sea.
Then, the lithothamnion is dried and mixed with rye flour and water. This mixture is left to sit and ferment for a while, which means it starts to change and get bubbly all by itself.
After that, the mixture is shaped into little loaves and baked in a very hot oven. The heat makes the bread get crunchy on the outside, but soft and chewy on the inside.
Once the bread is done, it is cut into slices and often eaten with butter, cheese, or other yummy toppings. Some people say that lau bread has a slightly salty and nutty taste, which makes it really delicious.
So, in summation, Lau bread is a delicious, special bread that comes from the island of Gotland in Sweden. It is made with a unique recipe that involves seaweed, rye flour, and fermentation. When it's done, it's cut into slices and eaten with yummy toppings.