01 - Preheat waffle iron according to manufacturer's instructions.
02 - In a medium bowl, whisk together Greek yogurt, eggs, milk, melted butter, and vanilla extract until smooth and fully incorporated.
03 - In a separate bowl, combine flour, sugar, baking powder, baking soda, and salt.
04 - Add dry ingredients to wet ingredients, folding gently with a spatula just until incorporated. Avoid overmixing; small lumps are acceptable.
05 - Lightly grease preheated waffle iron with melted butter or cooking spray.
06 - Pour approximately 1/3 cup batter per waffle, adjusting for iron size. Cook until golden brown and crisp, approximately 3-5 minutes per batch.
07 - Serve immediately with fresh berries, honey, or pure maple syrup.