01 - Preheat 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 blended.
03 - In a separate bowl, whisk together eggs, milk, melted unsalted butter, and vanilla extract until fully combined.
04 - Pour the wet mixture into the dry ingredients and mix gently just until incorporated. Do not overmix; some lumps should remain.
05 - Gently fold diced strawberries into the batter using a spatula.
06 - Lightly grease the preheated waffle iron with melted butter.
07 - Ladle an appropriate amount of batter into the waffle iron (refer to manufacturer’s recommendations). Cook until waffles are golden brown and crisp, approximately 3 to 5 minutes per batch.
08 - Serve warm with whipped cream or yogurt, extra strawberry slices, and maple syrup or honey if desired.