Prepare 4- 7" cake pans with grease & parchment paper lining.
Prepare the cheesecake batter by placing all of the cheesecake ingredients into the work bowl of your food processor & pulse to blend smooth
Scrape the sides of the bowl to ensure an even mix then blend again to a smooth mixture
Divide the batter equally into 2 portions & amongst the greased & parchment lined cake pans & bake in a water bath in the preheated 350°F oven for 40 minutes.
Next prepare the brownie as per the instructions on that recipe & divide this batter into 2 equal portions into the other 2 prepared cake pans.
Bake the brownie layers along with the cheesecake layers at 350°F for approximately 25 minutes, I like to keep my brownies slightly under baked for a fudgy texture, be careful not to over bake
Cool both the cheesecake layers & the brownie layers in the pans completely then turn out just the brownie layers onto a cooling rack. Keep the cheesecake in their pans until ready to build the cake.
Prepare the chocolate buttercream recipe as per the recipe instructions on that post .
Now prepare the ganache recipe & reserve keeping warm to a pour able consistency
When you are ready to assemble the cake, prepare the peanut butter fudge by combining the peanut butter, coconut oil & agave in a medium heavy bottom sauce pot over medium heat whisking often until melted & smooth.
If you have a silicone mold like I did (see video) pour just enough (approximately 3/4 cup) of the peanut butter fudge into a mold for the garnish, the rest will go as layers in the cake. Alternatively you can pour about 3/4 cup of the PB fudge into a bowl to set then scoop balls of fudge for the garnish on each sliceThe peanut butter fudge will only set in the refrigerator because coconut oil only gets solid at cold temperatures Start building the cake by setting up a cake ring mold lined with an acetate cake strip or use a springform pan with the bottom removed
Start by spreading a small amount of chocolate buttercream over the brownie layer & then about ½ cup of the roasted peanuts
Unmold one of the cheesecake layers directly onto the first brownie layer & then pour half of the peanut butter fudge over top.
Allow it to set and then repeat the exact layering process with the remaining brownie, peanuts, cheesecake & remaining peanut butter fudge.
Refrigerate the cake to set for at least 1 hour then remove the cake ring & acetate strip & ice the cake with the remaining chocolate buttercream.
Ganache drips & large rosettes of chocolate buttercream for the garnish then place each set peanut butter fudge garnish on each rosette
Additional roasted peanuts for the bottom border & garnish