Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a medium bowl, whisk together the all-purpose flour, almond flour, cornstarch, baking powder, baking soda, and salt. Set aside.
In a separate large bowl, cream the softened butter and granulated sugar together until light and fluffy, about 3-4 minutes.
Add the egg and vanilla extract to the butter mixture, mixing until well combined.
Gradually add the dry ingredients to the wet ingredients, mixing just until combined.
Gently fold in the chopped strawberries until evenly distributed in the dough.
Using a cookie scoop or tablespoon, drop cookie dough onto the prepared baking sheet, spacing them about 2 inches apart.
Bake for 12-15 minutes, or until the edges are lightly golden. Remove from the oven and let cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.
Once cooled, top each cookie with a dollop of whipped cream and garnish with extra strawberry slices.