Preheat your oven to 410°F (210°C).
In a mixing bowl, whisk together all-purpose flour, cake flour, baking soda, baking powder, cornstarch, and salt until well combined.
In a separate large bowl, cream together softened butter, granulated sugar, light brown sugar, and creamy peanut butter until light and fluffy.
Add in the eggs one at a time along with vanilla extract, mixing until fully incorporated after each addition.
Gradually add the dry mixture into your wet ingredients, stirring just until combined to avoid overmixing.
Using a cookie scoop or tablespoon, portion out dough onto prepared baking sheets spaced apart and roll them in granulated sugar before baking.