Preheat the oven to 180 (350f) and prep three 8-inch baking pans with parchment paper.
Into a big bowl, add the flour, sugar, cocoa powder, baking powder, and baking soda. Mix well with a whisk until combined.
Add the eggs, oil, vanilla extract, and buttermilk. Mix well until combined.
Add the kosher salt and the hot coffee, mix well until the batter is smooth.
Divide the mixture into three 8-inch baking pans, we suggest using cake strips for even baking. (weight the batter for better results) and bake in a preheated oven for 25-30 minutes or until a toothpick comes out clean. Let the cake cool completely before frosting.
For the frosting:
Make the chocolate frosting: into a large bowl add room temperature butter and mix with a hand mixer or a stand mixer until the butter is light and fluffy.
Add half of the powder sugar and the cocoa powder and carefully mix until combined.
Add the other half of the powder sugar and mix until smooth.
Melt dark chocolate or semisweet chocolate and let it cool completely to room temperature.
Add the melted chocolate to the mixture and mix until well combined and smooth.
Make the chocolate ganache:
Melt dark chocolate and heavy cream in a small to medium mixing bowl in the microwave for about 50 seconds.
Let the chocolate and the cream sit for 10 minutes for the chocolate to melt, then mix until the chocolate ganache is smooth and silky.
Make the chocolate whipped cream:
In a cold big mixing bowl add the heavy whipping cream, sift the cocoa powder, and add the sugar and vanilla.
Whip with a hand mixer or in a stand mixer until stiff peaks form. Make sure that you don't overmix the whipped cream so it won't turn into butter.
Assembly
Pipe a small dollop of the frosting on the surface that you will frost on. Lay the first cake layer over the frosting dot.
Top the first cake layer with ⅓ of the buttercream and spread an even layer using a spatula. Repeat with the second cake layer, and top it with the third cake layer.
Frost the cake with a very thin layer of buttercream, and place the cake in the freezer to set for 15 minutes. (this is the crumb coat)
Remove the cake from the freezer and frost it with the remaining frosting and place it in the freezer for another 10 minutes to set.
Pour the chocolate ganache over the cake and use a spatula to carefully push the ganache around the edges of the cake until a drip design forms.
Make dollops of the chocolate whipped cream around the edges of the cake. We used a 1M piping tip.
Notes
Use cake strips! Cake strips give you even and perfectly baked cake layers. Click here for the amazon link.
Use room temperature ingredients. It is important that you use room-temperature ingredients like eggs and butter. This step ensures that your mixture mixes into a homogenous mixture and bakes perfectly. you don’t want to place cold batter into the oven.
Measure your flour correctly! When measuring your flour, avoid scooping it with a measuring cup. Instead, stir the flour with a spoon to create as many air pockets as possible, and spoon it into your measuring cup. Finally, level it with a back of a knife.
Don’t overmix the batter, you don’t want to develop the gluten in the flour. This step ensures you have a moist cake and not a dense and dry cake.
Line your baking pan with parchment paper! This step helps the cake to bake evenly, and it makes sure that your loaf cake will release easily from the pan.
Be patient! I know it’s extremely tempting to frost these cakes as they are pulled out of the oven, but let the cake cool for at least 1 hour so it will be more firm and won’t crumble up, and prevent the frosting from melting.