Triple Cookie Skillet Pie

1. Make the Chocolate Chip Cookie Dough: In a medium bowl, stir together the melted butter, sugar and brown sugar. Add the egg white and vanilla, and mix well to combine.

2. Add the flour, baking soda, and salt and mix to combine. Mix in the chocolate chips.

3. Make the Chocolate S’mores Cookie Dough: In a medium bowl, stir together the melted butter and brown sugar. Add the egg white and vanilla, and mix well to combine.

4. Add the flour, cocoa powder, baking soda, and salt and mix to combine. Mix in the chocolate chips and marshmallows.

5. Make the Snickerdoodle Cookie Dough: In a medium bowl, stir together the melted butter and ½ cup sugar to combine. Add the egg white and vanilla, and mix well to combine.

6. Add the flour, baking soda and salt and mix to combine. Mix in the M&Ms. In a small bowl, stir together the remaining 2 tablespoons sugar and cinnamon.

7. Lightly grease a 10-inch oven-safe skillet. Press each dough evenly into ⅓ of the skillet, leaving ½-inch of space between each type of cookie dough. Chill for 10 minutes. Preheat the oven to 350°F.

8. Sprinkle the cinnamon sugar over the snickerdoodle portion of the cookie. Bake the cookie until lightly golden brown, 17 to 20 minutes. Let cool at least 20 minutes before serving.