Pink Lemonade Cookies

Start to finish: 1 hour 20 minutes
Makes: 12 large cookies

Ingredients
For the cookie dough:
½ cup unsalted butter, room temperature
3/4 cup granulated sugar
1 large egg, room temperature
½ cup full-fat sour cream or full-fat plain Greek yogurt, room temperature
1 teaspoon vanilla extract
1½ cups all-purpose flour
½ teaspoon baking powder
¼ teaspoon kosher salt

For the frosting:
1 cup unsalted butter, room temperature
2 cups powdered sugar
1 teaspoon Pink Lemonade Kool-Aid® mix (add more for a stronger flavor)
1 tablespoon whole or 2% milk

Method
For the cookie dough:
In the bowl of a stand mixer, cream butter and sugar together 2 minutes, until light and fluffy. Mix in egg, sour cream and vanilla extract. Scrape down the sides and bottom of the bowl with a rubber spatula. Add flour, baking powder and kosher salt. Mix on low speed until just combined.
Cover the dough and place it in the refrigerator to chill for 1 hour. When ready to bake, heat oven to 350 F.

Scoop the dough with a large (3 tablespoons) cookie scoop onto a parchment paper-lined baking tray. Bake until the tops spring back when touched, about 11–12 minutes. Let cool completely on a wire rack.

For the frosting:
In the bowl of a stand mixer, beat butter on low for 1 minute, until smooth and lump-free. Add in powdered sugar, and mix on low speed until combined. Then, increase the speed to medium-high and continue mixing 2–3 minutes, until very light and fluffy. Add pink lemonade mix and milk to the bowl, and mix on low speed to combine. Once the cookies are completely cool, frost the tops of each and garnish with fresh lemon zest.