• Make-Ahead

Ingredients

1. 1 cup walnut pieces
2. 1 stick (4 ounces) unsalted butter, softened
3. 1 1/2 cups confectioners' sugar
4. 1 cup all-purpose flour
5. 1 teaspoon pure vanilla extract
6. Pinch of salt

Directions

1. Preheat the oven to 350°. Spread the walnuts in a pie plate and bake for 6 minutes, or until golden. Let cool, then finely chop. Leave the oven on. 
2. Using a handheld electric mixer, beat the butter with 1/2 cup of the sugar at medium speed until creamy. Beat in the flour, toasted walnuts, vanilla and salt at low speed. 
3. Shape the dough into 1-inch balls and transfer them to a baking sheet. Bake for 15 to 20 minutes, or until firm, then let cool on the baking sheet for 5 minutes. Roll the warm cookies in the remaining 1 cup of sugar, then transfer to wax paper. Roll 2 or 3 more times in the sugar and let cool completely until set.

Make Ahead

The cookies can be stored for 4 days in an airtight container.