Apple Honey Walnut Cake

Ingredients

• 2 cups plus 1 tablespoon all purpose flour, divided
• ½ cup brown sugar
• 1½ teaspoons baking soda
• 1 teaspoon cinnamon
• ½ teaspoon Kosher salt
• 1 cup honey
• ½ cup apple sauce
• ¼ cup vegetable oil
• ¼ cup orange juice
• 3 eggs
• 1 medium apple, peeled, cored and diced small
• 1 cup roughly chopped California walnuts
• 1 cup confectioners sugar
• 1 tablespoon water (or milk)
• 1 tablespoon honey
• ¼ cup chopped California walnuts