Ingredients
Equipment
Method
Make the cookies
- Heat the oven to 350°F.
- Line two 18x13-inch rimmed baking sheets with parchment paper.
- In a large bowl, beat the butter and 1/2 cup of the powdered sugar with a mixer on medium speed until creamy, about 2 minutes.
- Beat in 1/2 teaspoon of the peppermint extract.
- Add the flour, cornstarch, and salt; mix on low just until a soft dough forms.
- Cover the bowl and chill the dough until firm, 30–45 minutes.
- Scoop the dough into 32 level tablespoon portions and roll them into balls.
- Arrange the dough balls 2 inches apart on the prepared baking sheets.
- Bake one sheet at a time on the center rack for 10–12 minutes, until the cookies look set and the bottoms are lightly golden.
- Cool the cookies on the sheets for 5 minutes.
- Transfer the cookies to a wire rack to cool completely.
Make the icing
- Whisk the remaining 1 1/2 cups powdered sugar, 1/4 teaspoon peppermint extract, and milk until smooth and spreadable.
- Spread a thin layer of icing over each cooled cookie.
- Sprinkle the cookies with the crushed peppermint candy.
- Let stand for 20–30 minutes until the icing sets.
Notes
For the smoothest icing, make sure the cookies are completely cool before spreading it on. Store airtight in the refrigerator for up to 5 days; freeze yes, in an airtight container. For a dairy-free option, use plant-based butter and milk, and check that the peppermint candy is dairy-free.
