Thyme–Walnut Sandies

Ingredients

• 2/3 cup walnuts
• 1/2 cup whole wheat flour
• 1 1/2 cups all-purpose flour
• 1/2 teaspoon kosher salt
• 2 tablespoons chopped thyme
• 1 tablespoon granulated sugar
• 1 cup (2 sticks) unsalted butter, room temperature
• 1/2 cup powdered sugar
• 2 3/4 cups powdered sugar
• 1/2 teaspoon finely grated orange zest
• 1/4 cup fresh orange juice
• 1 tablespoon heavy cream
• 1 tablespoon virgin coconut oil, melted
• 1 teaspoon thyme leaves
• 1/4 teaspoon kosher salt