Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a large mixing bowl, cream together the softened butter and 1/2 cup powdered sugar until light and fluffy.
Add the vanilla extract and peppermint extract to the butter mixture and mix until combined.
In a separate bowl, whisk together the all-purpose flour, cornstarch, and salt. Gradually add this dry mixture to the wet ingredients, stirring until just combined.
Fold in the crushed peppermint candies, ensuring they are evenly distributed throughout the dough.
Using your hands, form the dough into 1-inch balls and place them on the prepared baking sheet about 2 inches apart.
Bake in the preheated oven for 10-12 minutes or until the edges are lightly golden. The cookies will look soft but will firm up upon cooling.
Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack.
Once completely cooled, dust the cookies generously with powdered sugar to create a snowy effect.
Notes
Arrange the cookies on a festive platter and garnish with extra crushed peppermint candies for a pop of color, perfect for holiday gatherings!