These sour cream cookies are fluffy, tender, and delicate. The rich buttercream is the perfect accompaniment. It's easy to make and perfect for any holiday!
Preheat oven to 375°F (190°C). Line baking sheets with parchment paper.
In a medium mixing bowl, whisk together flour (2 ¾ cups), baking powder (1 ½ teaspoons), baking soda (½ teaspoon), salt (½ teaspoon), and nutmeg (¼ teaspoon) until evenly combined.
Using an electric mixer set on medium speed, cream together 1 1/2 cups sugar and butter (1 cup) until smooth and creamy, about 3 minutes. Stir in sour cream (½ cup) and lemon extract (½ teaspoon). Gradually mix the flour mixture into creamed butter mixture until the dough is combined.
Add in eggs (2), one at a time, mixing until the yolk disappears.
Drop dough by medium cookie scoops, about 3 inches apart, onto the prepared baking sheets.
Bake in the preheated oven until edges just begin to brown ( the rest of the cookie will be pale), about 6-7 minutes. Transfer cookies to a wire rack to cool completely.
Make The Frosting:
Start frosting as the cookies bake. In a mixing bowl, using a handheld electric mixer, cream together butter (3/4 cup) and confectioners sugar (3 cups).
Stir in vanilla (1 1/2 teaspoons) and milk (3 tablespoons) and mix until smooth. If the frosting is too thick, adjust by adding more, a little at a time.
When cookies are completely cool, use an offset spatula to spread them on cookies.
Notes
Butter: Make sure the butter is at room temperature.
Egg: Eggs need to be at room temperature as well. They blend into the dough better and create a smoother dough as well.
Cookie Scoop: I used a medium cookie scoop with the dough leveled off to shape the cookies.