Bring a pot of salted water to a boil.
Carefully place the vareniki into the boiling water.
Stir gently to prevent sticking and wait until they float to the surface.
Once they float, continue boiling for an additional 3 minutes.
Carefully remove the cooked vareniki from the boiling water and transfer them to a deep plate.
Add a bit of oil or butter to the vareniki to prevent them from sticking together.