Cervelat is a type of sausage that is made from meat. Imagine you have some leftovers like ham or chicken that you want to use up. You can chop up the meat into really tiny pieces and mix it with other ingredients like spices and salts. Then, you stuff the mixture into a sausage casing, which is like a long tube made out of animal intestines or synthetic materials.
Once the sausage is made, you can cook it in different ways, such as grilling or boiling it. When you cook the cervelat, the heat makes sure that all the tiny bits of meat inside are cooked thoroughly so you don't get sick.
People have been making and eating cervelat for a very long time. It comes from Switzerland where it was first made over 500 years ago! These days you can find cervelat all over the world, and you can enjoy it as a tasty snack or as part of a meal.