Preheat oven to 350°.
Cream together the butter, granulated sugar and brown sugar.
Add the egg and vanilla. Mix until light in color and creamy.
Add in the dry ingredients (flour, black cocoa, crushed oreos, baking soda, baking powder and salt), mix into the dough. Mix until completely combined.
Portion out the dough into 1/2 cup portions. Roll into a ball and arrange 6 onto each cookie sheet. Press down slightly on the cookie dough, flattening it into what looks like a hockey puck.
Bake for 12-15 minutes, until the cookies are no longer glossy on the top.
Allow the cookies to cool on the pan for 20 minutes before frosting.
While the cookies are cooling, make the frosting by whipping the cream cheese until smooth.
Slowly add in the marshmallow cream while mixing until all of it has been added and combined thoroughly. The mixture should be smooth, not chunky.
Add the powdered sugar 1/2 cup at a time, mixing until completely combined before adding more powdered sugar. Repeat until the full 2 cups of powdered sugar have been added.
Add the frosting to a piping bag fit with a large round (1D) tip or alternatively a gallon sized zip top bag with the corner of the bag cut.
Pipe the frosting onto the warm cookies in a spiral, starting at the center of the cookie and working your way out.
Add the raspberry preserves to a small zip top bag and cut the corner and zig zag the raspberry preserves over top of the frosting. Serve warm and Enjoy!