Kvas

Kvas is a yummy drink that people in some countries like to make. It's kinda like a fizzy juice but not too sweet. They make it by mixing water, sugar, and special bread called rye bread. Then they let it sit for a while until it gets all bubbly and fizzy. Finally, they strain out the bread and pour the kvas into a bottle or a cup to drink! Some people even add fruit to make it extra yummy. Just be careful, even though it's delicious, too much kvas can be bad for your tummy!