Sassy Mama: Key Lime Meltaways

1 3/4 cups plus 2 tablespoons all-purpose flour

2 tablespoons cornstarch

1/4 teaspoon salt

¾ cup unsalted butter, room temperature

1/3 cup granulated sugar

1/3 cup powdered sugar

Grated zest of 2 limes

2tablespoons key lime juice

1 tablespoon pure vanilla extract

2/3 cup powdered sugar for serving

In a medium bowl, whisk together flour, cornstarch, and salt. Set aside. In the bowl of an electric mixer fitted with the whisk attachment, cream butter and both sugars until fluffy. Add lime zest, juice, and vanilla; beat until fluffy. Add dry ingredients and mix on low speed until blended. Divide the dough in half. Roll into logs and wrap in plastic wrap. Chill at least 1 hour in the refrigerator. Preheat oven to 350 degrees. Line two baking sheets with parchment. Remove logs from the refrigerator; slice dough into 1/4-inch-thick rounds. Place rounds on baking sheets, spaced 1 inch apart. Bake cookies until barely golden, about 15 minutes. Transfer cookies to a wire rack to cool slightly, 8 to 10 minutes. Place the cookies into 2/3 cup powdered sugar in a Ziploc bag. While still warm, place cookies in the bag; toss to coat. Store baked cookies in an airtight container for up to 2 weeks.