01 - Preheat the waffle iron following the manufacturer's instructions.
02 - In a large bowl, whisk together the flour, granulated sugar, baking powder, and salt until evenly blended.
03 - In a separate bowl, whisk the eggs, milk, melted butter, and vanilla extract until fully incorporated.
04 - Pour the wet mixture into the dry ingredients. Stir gently until just combined; do not overmix. Some lumps may remain.
05 - Carefully fold diced strawberries into the batter with a spatula.
06 - Lightly grease the waffle iron with melted butter. Spoon an appropriate portion of batter into the hot iron and cook until waffles are golden and crisp, 3–5 minutes per batch.
07 - Serve waffles warm, garnished with whipped cream, extra sliced strawberries, and syrup as preferred.