Dessert

Combine flour, eggs, milk, water, and salt in a large bowl and mix with a hand mixer until smooth and lump-free
Mix butter into the batter or reserve butter to grease the pan
Heat a non-stick pan over medium heat
Grease the pan with butter if using it for frying
Pour batter into the pan and swirl to help it spread
Flip the pancake when it pulls away from the sides and the top is no longer wet, then cook briefly on the other side
Transfer the cooked pancake to a plate
Cook the remaining batter until used up
Serve warm with the filling of your choice