Walnut Meltaways

Bahan-bahan (18 porsi)

• 1½ cups walnut halves
• 1½ cups (3 sticks) unsalted butter, (at room temperature)
• ¾ cup powdered sugar
• 1 tablespoon vanilla extract
• ¾ teaspoon kosher salt
• 2¾ cups all purpose flour
• 18 walnut halves
• ½ cup powdered sugar