Step 1

Preheat oven to 325 degrees. Whisk together flour, 1/2 cup confectioners' sugar, and salt in a bowl. In a large bowl, beat butter with 1/4 cup confectioners' sugar, zest, and 2 tablespoons lemon juice on medium speed until pale and fluffy, about 3 minutes. Beat in flour mixture on low speed.

Step 2

Roll dough into 1-inch balls. Transfer to parchment-lined baking sheets, 2 inches apart. Freeze 10 minutes.

Step 3

Bake 10 minutes. Remove sheets one at a time and press the end of a wooden-spoon handle into center of each ball to indent. Continue to bake until golden on bottoms, 16 to 18 minutes more. Let cool completely on sheets on wire racks.

Step 4

Whisk together remaining 1 1/4 cups confectioners' sugar and 2 tablespoons lemon juice with raspberry in a bowl, breaking up berry. Dust cookies with sugar, spoon glaze into indents, and let set, 10 minutes. Cookies can be stored in a single layer at room temperature up to 1 week.