Preheat oven to 350 degrees F. and place an oven rack in the upper most position.

Liberally grease then flour a 9” spring form pan then wrap the bottom and an inch up the sides with foil in case the springform pan leaks (as mine did).

Soak cloth cake pan strips in water. (Using these cake pan strips is optional, but highly recommend to achieve a flat-topped cake.)

In a food processor, process the graham crackers to a fine crumb.

Add the flour, baking powder and salt to the graham cracker crumbs and mix to combine. Set this dry mix aside.

In the bowl of a stand mixer with the paddle attachment, cream the butter until smooth and pale, about three minutes.

Add the sugar and beat for one minute, scrape and beat to combine.

With mixer running on low, add one egg at a time, mixing each in until combined. After both eggs and yolks have been added, scrape and beat again to combine.

Add vanilla and mix to combine.

With mixer on low, alternate adding dry mix and milk. Scrape the bowl and mix to combine.

Add chocolate chips and mix for five seconds then remove and scrape into the prepared springform pan, smoothing the top with an offset spatula to an even surface.

Wrap springform pan with the wet cloth cake strips centered just above the top of the bottom foil.

Bake on the top rack for 30 minutes. Check the center with a tooth pick and remove if it comes out clean. If not check every two minutes until it comes out clean. In my oven, it took exactly 32 minutes.

Remove to a rack, remove the cloth cake strips, and let the cake sit for five minutes. Then run a knife along the outer edge to loosen, remove the foil and release the springform pan edge.

Move to a rack to cool completely.

While cooling, make the frosting by creaming the butter in a stand mixer with the paddle attachment for three minutes until pale and creamy.

Slowly add confectioners’ sugar with mixer running on low.

Add vanilla and mix. Scrape the bowl and mix again.

Add the fluff and mix until creamy.

Spread over the top of the cooled cake with an offset spatula and lightly frost the sides with a thin coating, also known as a naked cake.

Shave some dark chocolate over the top. Cut into eight wedges and serve.