Preheat the oven to 350°F (175°C). Line the baking pan with parchment paper and set aside.
Combine the sifted flour and sugar in a large mixing bowl. Mix well to incorporate.
1 ½ cups fresh strawberries
Add the melted butter, eggs, vanilla extract, and milk to the dry ingredients. Use an electric mixer or whisk to beat until the batter is smooth and slightly thickened, about 2-3 minutes. The batter should be uniform with no lumps.
½ cup unsalted butter, 2 large eggs, 1 teaspoon vanilla extract, ½ cup milk
Gently fold the chopped strawberries into the batter until evenly dispersed. The mixture will be slightly uneven due to the berries.
1 ½ cups fresh strawberries
Pour the batter into the prepared baking pan, spreading evenly with a spatula. Place in the oven and bake for 30 minutes, or until the top is golden and a toothpick inserted into the center comes out clean. The edges should be slightly pulling away from the pan.
Remove from the oven and allow to cool in the pan for 10 minutes. Transfer to a cooling rack and let cool completely before serving. Optionally, garnish with additional sliced strawberries on top.