Preheat your waffle maker according to the manufacturer's instructions.

In a mixing bowl, whisk together the all-purpose flour, sugar, baking powder, and salt.

In another bowl, beat the eggs and then add the vegetable oil, water, and vanilla extract.

Pour the wet ingredients into the bowl with the dry ingredients. Stir gently until just combined; a few lumps are okay.

Lightly coat the waffle maker with cooking spray or a brush of oil.

Using a ladle, pour the batter into the preheated waffle maker.

Close the waffle maker and cook according to the manufacturer’s instructions, usually about 5 minutes.

Carefully remove the waffles and serve them warm.