Preheat your oven to 350°F (175°C) and grease two round cake pans.

In a bowl, whisk together cake flour, baking powder, and granulated sugar.

In a separate bowl, cream the softened butter until fluffy. Gradually add in the sugar mixture until light and airy.

Beat in eggs one at a time, then add vanilla extract.

Alternately mix in the dry ingredients and milk until smooth.

Gently fold in diced strawberries and pour the batter into prepared pans.

Bake for 25-30 minutes or until a toothpick comes out clean. Allow to cool before frosting.