Preheat the oven to 350°F. Cut off the top ½ inch of each apple, core them with a coring tool, and scoop out about ⅓ of the flesh from each apple. Place the hollowed apples upright in a 10-inch skillet.
In a medium bowl, mix the Dark Brown Sugar and ground cinnamon, then spoon some of this sugar mixture into the bottom of each apple cup.
In the same bowl, combine the quick cooking oats, all purpose flour, sweet cream unsalted butter, kosher salt, and zest of one orange. Crumble the mixture together with your fingers and pack it into the remaining space in each apple so the tops are filled.
Whisk the orange juice, honey, and additional orange zest in a small bowl, then gently pour this mixture into the bottom of the skillet.
If any filling remains, sprinkle it over the tops of the apples. Bake for 30-40 minutes, until the apples are easily pierced with a knife, then drizzle the pan juices over the apples before serving.