01 - Preheat your heart-shaped waffle iron according to the manufacturer's instructions until ready for use.
02 - In a large bowl, whisk together the flour, sugar, baking powder, baking soda, and salt until well incorporated.
03 - In a separate bowl, beat the eggs, then whisk in the milk, melted butter, and vanilla extract until smooth.
04 - Pour the wet ingredients into the dry ingredients and stir until just combined. Do not overmix; a few lumps are acceptable.
05 - Lightly grease the preheated waffle iron with oil or cooking spray to prevent sticking.
06 - Pour about 1/3 cup of batter into the center of the waffle iron, adjusting based on your iron's capacity.
07 - Close the lid and cook for 3 to 5 minutes, or until waffles are golden brown and crisp.
08 - Carefully remove the cooked waffles and repeat with the remaining batter until all waffles are prepared.
09 - Serve warm with fresh berries, whipped cream, maple syrup, or a dusting of powdered sugar as desired.