Preheat oven to 180 ° F and grease a 8" springform or ring mold cake tin with butter or oil.
I a mixing bowl sift together flour, cocoa powder, baking powder, baking soda and salt.
In another bowl beat together butter and sugar until creamy and soft.
Melt chocolate in double boiler and add it to the butter-sugar mixture. Stir in buttermilk and vanilla extract.
Combine the flour mixture into the wet mixture in two or three batches and mix gently until all the ingredients are mixed.
Transfer the batter into the prepared cake tin. Bake in preheated oven for about 30 minutes or until a cake tester inserted in the centre of the cake comes out clean.
Remove the cake from oven and let it sit in the cake tin for 10 minutes. Unmold the cake and let it cool.
Once cooled completely slice the cake into two layers and set aside.
For No Churn Coffee Ice Cream layer
In a mixing bowl whisk the heavy cream on low until soft peaks.
Stir in Hill Bros Double Mocha Cappuccino and whisk again for few minutes or until stiff peaks.
Once the cream is whipped fold in the sweetened condensed milk into the cream.
Place in refrigerator covered with cling wrap until use.
For Whipped cream layer
In a mixing bowl whip the cream on low until soft and creamy.
Add sifted icing sugar and vanilla extract and whisk again on high until it starts thickening.
Place in refrigerator until use.
Assembling the cake
Grease the springform cake tin and place a layer of sliced cake on the bottom of the tin.
Spread a thick layer of no-churn coffee ice cream layer on top of the cake layer.
Cover with cling wrap directly on top of the ice cream layer and let it set in freezer for 2 hours or until the ice cream layer solids.
Once the ice cream layer is firm enough top it with the second layer of cake.
Spread the whipped cream layer on top of the cake layer. Sprinkle some leftover cake crumbs.
Slice and serve immediately or freeze until use.
Store the leftover cake in the freezer wrapped with cling wraps.