In a large mixing bowl, whisk together the all-purpose flour, baking powder, salt, and sugar until combined. Create a well in the center of the dry ingredients and add the water, egg, melted butter, and vanilla extract. Gently mix until the batter is mostly smooth, taking care not to overmix.

Preheat a non-stick griddle or large skillet over medium heat. Lightly grease the surface with a small amount of butter or cooking spray. Let the pan warm for about 2-3 minutes before pouring in the batter.

Pour approximately ¼ cup of batter onto the heated pan for each pancake. Cook for about 2 minutes, observing for bubbles forming on the surface and the edges appearing set. Flip each pancake and cook for an additional minute until golden brown.

Transfer the pancakes to a warm plate, stacking them to keep the heat. Repeat with the remaining batter. Serve warm, topped with maple syrup, fresh fruit, or your favorite toppings.