BULGARIAN YOGURT

Bulgarian yogurt was probably discovered by accident when someone left milk out too longand it mixed bacteria. Later, people started to do this on purpose. This meant that they did not have to worry about keeping their milk cold, and the result was delicious.

http://www.tastingeurope.com/sites/default/files/styles/large/public/main_pictures/yougurt.jpg?itok=FrH8X4jA