Lime Meltaways

Bahan-bahan (60 porsi)

• ¾ cup (1½ sticks) unsalted butter, (at room temperature)
• 1 cup powdered sugar, (divided)
• 2 medium limes, (zested)
• 2 tablespoons freshly squeezed lime juice
• 1 tablespoon vanilla extract
• 1¾ cups all purpose flour
• 2 tablespoons cornstarch
• ¼ teaspoon kosher salt