On a lightly floured surface, roll out the loaf of dough to about ½-inch thick. Cut circles with a 2¾-inch round biscuit cutter. Place circles on a lightly floured sheet tray and let rest 10 minutes.

Prepare glaze by mixing the powdered sugar and water in a medium sized bowl. It should be pretty thin. Set aside.

Meanwhile, fill a stock pot with oil 2 to 3 inches high from the bottom. Warm the oil over medium-low heat until the oil reaches 350 degrees Fahrenheit.

Stretch the donut circles slightly with your hands and drop them one at a time into the hot oil, frying only 3 at a time so the temperature of the oil doesn't drop dramatically. Cook until dark golden brown on each side. Make sure your oil isn't too hot, or the outside will brown before the center is fully cooked.

Place cooked donuts onto a cooling rack that has been placed inside of a sheet tray. While still fairly warm, place each donut into the bowl of glaze, and turn it over to coat all sides. Pour off any excess glaze and then place the donut back onto the cooling rack with the sheet tray to catch any remaining drippings.

Repeat frying and glazing donuts until finished. Allow donuts to cool completely until the glaze is set.

Make the Marshmallow Buttercream Filling by beating the butter and marshmallow creme/fluff together in a large bowl with an electric hand mixer. Add the powdered sugar. Mix well. Add the heavy cream and vanilla. Mix well. It might be soft, and that's okay. Put it in the refrigerator while the donuts cool.

Crush the graham crackers in a closed zip-top bag with a rolling pin. Set aside.

Using a sharp knife or the pointed end of some kitchen shears, poke two holes on opposing ends in each donut, and wiggle your knife or scissors to help create a hollow cavity to fill with the buttercream. Place the marshmallow frosting in a piping bag that's been fitted with a coupler and large round tip. Squeeze the frosting into each end of the donuts so the centers are nice and full.

Make ganache by heating the heavy cream in the microwave until just boiling. Then pour it over the chocolate chips and stir until smooth. Allow chocolate to cool slightly and thicken. Dip the top of each donut into the thick ganache. Sprinkle crushed graham crackers on top. Allow to cool until the chocolate is set. Enjoy!