Ingredients

• 1 cup warm (110°F) water

• 2 tablespoons granulated sugar

• 1 (1/4-oz.) envelope active dry yeast

• 1 1/2 teaspoons kosher salt

• 3 to 3 1/2 cups (about 12 3/4 ounces to 14 7/8 ounces) all-purpose flour, divided, plus more for work surface

• 4 tablespoons unsalted butter, melted

• Cooking spray

• 1 large (8 ounce) Honeycrisp apple, cored and cut into 1/16-inch-thick slices (about 1 3/4 cups)

• 1 1/2 cups dark brown sugar

• 4 tablespoons unsalted butter, melted

• 1 tablespoon cornstarch

• 1 tablespoon ground cinnamon

• 1 teaspoon ground ginger

• Cooking spray

• 1 1/2 cups (about 6 ounces) powdered sugar

• 2 tablespoons whole milk