16tablespoons(2 sticks or 1 cup) unsalted butter, at room temperature
3large eggs
1teaspoonpure vanilla extract
1/2teaspoonfresh lemon zest
2 1/2cupsall-purpose flour
1teaspoonbaking soda
1/2teaspooncream of tartar
1/4teaspoonsalt
For the frosting:
1(8-ounce) package cream cheese, at room temperature
1/4cupgranulated sugar
1/2teaspoonlemon zest
2teaspoonsvanilla extract
fresh blueberries
fresh raspberries
Instructions
For the cookies:
Preheat oven to 350 degrees F. Line 2 large baking sheets with parchment paper or silicone baking mats.
With an electric mixer, cream together sugar and butter until light and fluffy, about 3 minutes, scraping down the sides of the bowl as necessary. Beat in eggs, vanilla, and lemon zest until thoroughly combined.
Add the flour, baking soda, salt, and cream of tartar and beat until just combined.
Drop tablespoonfuls of dough onto prepared baking sheets, spacing 2 inches apart. Flatten dough slightly with your hand. Bake 10-11 minutes, until the edges are slightly golden. Place baking sheets on cooling racks until the cookies are set then remove cookies directly to racks. Let cool completely before frosting.
For the frosting:
With an electric mixer beat cream cheese, sugar, lemon zest, and vanilla until light and fluffy.
Spread an even layer of cream cheese frosting over each cooled cookie. Garnish the cookies with blueberries and raspberries. Serve immediately or store in the fridge for up to 2-3 days, bringing down to room temperature before serving.