BA's Best Morning Buns | Scanned Recipes | Umami

Ingredients

• 1 ¼-ounce envelope active dry yeast (about 2¼ teaspoons)
• 1 cup whole milk, warmed, plus ¼ chilled milk
• 1 teaspoon plus ¼ cup honey
• 4 large eggs, separated, plus 1 large egg yolk
• 3½ cups (or more) bread flour, divided
• 1 cup whole wheat flour
• 2 teaspoons Diamond Crystal or 1 teaspoon Morton kosher salt
• 2 teaspoons finely grated orange zest (optional)
• 2 teaspoons vanilla extract
• 1 cup (2 sticks) unsalted butter, cut into pieces, room temperature
• ¾ cup (packed) light brown sugar
• 1 tablespoon ground cinnamon
• ¾ teaspoon ground cardamom
• ½ cup honey, divided
• 12 tablespoons (1½ sticks) unsalted butter, divided
• Bread flour (for surface)
• Nonstick vegetable oil spray
• Fine sanding sugar or granulated sugar (for sprinkling)