Pour flour into a bowl, add milk and water (carbonated or plain) and mix with a whisk or briefly blend with a mixer into smooth batter without lumps.
Add sugar, salt, eggs, and vegetable oil or melted butter and mix again with a whisk or blend into smooth batter. The batter can be set aside for an hour or you can start frying the pancakes right away.
Heat a pan (e.g. a pancake pan, but it's not necessary). Pour a small portion of batter onto the heated pan using a ladle and spread it across the entire surface by tilting the pan.
When the bottom of the pancake is nicely browned and set, flip it to the other side using a spatula and repeat frying on the other side. Fry the remaining pancakes and place them on a large plate.