Croissant Morning Buns

Preferment

• 6 tablespoons milk
• 1 ½ teaspoons active dry or instant yeast
• ⅔ cup all purpose flour

Dough

• 2 teaspoons active dry or instant yeast
• ¾ cup plus 2 tablespoons milk
• 3 cups all purpose flour
• 3 tablespoons sugar
• 2 teaspoons kosher salt
• ½ tablespoon unsalted butter melted and cooled
• 22 tablespoons (2 ¾ sticks) unsalted butter cool but pliable

Filling and Assembly

• ⅓ cup granulated sugar
 plus more for the pan and dusting finished buns
• ⅓ cup light brown sugar
• 2 teaspoons orange zest optional
• 1 ½ tablespoons cinnamon
• ¼ teaspoon kosher salt
• 4 tablespoons unsalted butter melted and cooled