01 - Preheat oven to 350°F. Lightly grease a 24-cup mini muffin tin with cooking spray or butter.
02 - In a medium bowl, whisk together all-purpose flour, baking soda, and salt until well combined.
03 - In a large bowl, beat softened butter and granulated sugar with an electric mixer until light and fluffy, approximately 2 minutes.
04 - Add the egg and vanilla extract to the butter mixture. Beat until fully incorporated.
05 - Gradually add the dry ingredient mixture to the wet ingredients. Mix on low speed until just combined, being careful not to overmix.
06 - Scoop approximately 1 tablespoon of dough into each muffin cup. Press gently into the bottom and up the sides to form a cup shape.
07 - Bake for 10-12 minutes until edges are lightly golden.
08 - Remove from oven. While still warm, gently press the center of each cookie with the back of a spoon to deepen the cup shape.
09 - Let cookie cups cool in the tin for 10 minutes, then carefully transfer to a wire rack to cool completely before filling.
10 - In a chilled bowl, whip heavy cream, powdered sugar, and vanilla extract with an electric mixer until stiff peaks form.
11 - Fill each cooled cookie cup with whipped cream using a spoon or piping bag. Top with fresh berries, sprinkles, or mini chocolate chips as desired.