01 - Preheat the waffle iron according to manufacturer's guidelines.
02 - In a large mixing bowl, whisk together all-purpose flour, granulated sugar, baking powder, and salt until evenly distributed.
03 - In a separate bowl, whisk eggs, milk, melted unsalted butter, and vanilla extract until fully blended.
04 - Pour wet mixture into the dry ingredients and gently stir until just combined; do not overmix. Batter should remain slightly lumpy.
05 - Using a spatula, gently fold diced strawberries into the batter for even distribution.
06 - Lightly grease the hot waffle iron with melted butter. Ladle an appropriate amount of batter onto the iron as directed by the manufacturer.
07 - Close the waffle iron and cook until waffles are golden brown and crisp, typically 3 to 5 minutes per batch.
08 - Serve warm, topped with whipped cream or yogurt, extra sliced strawberries, and maple syrup or honey if desired.