Step 1

Preheat the oven to 350ºF and prepare three 6-inch or two 8-inch cake pans by spraying the sides with cooking spray and fitting the bottoms with a wax paper or parchment cake circle.

Step 2

Add about an inch of water into a medium saucepan and bring it to a simmer. Place the chocolate and hot coffee, or water, into a heat safe bowl and place it on top of the simmering saucepan, making sure the bottom of the bowl does not touch the water in the saucepan. Whisk the chopped chocolate mixture constantly until the chocolate is fully melted and the mixture is homogenous. Set aside.

Step 3

In a medium bowl, whisk together the all purpose flour, cocoa powder, baking powder, baking soda, and salt. Set aside.

Step 4

In the bowl of your stand mixer (a handheld mixer works fine too!), beat the butter for on high for two minutes until it's light and creamy. Add 1 1/4 Cups of the sugar (set aside the remaining 1/4 Cup) and continue to mix on high for another two minutes, scraping down the bowl and paddle as needed.

Step 5

Turn the mixer to low and add the eggs yolks one at a time. Add the vanilla and the melted chocolate and beat until incorporated. Turn the mixer back to low and add the flour mixture and buttermilk in three additions, beginning and ending with the flour mixture. Mix only until the ingredients start to come together.

Step 6

In a separate bowl with a whisk attachment, beat the egg whites at high speed. Drizzle in the 1/4 cup of the reserved sugar and continue to beat on high for 2 minutes, until soft peaks form. Fold about one Cup of the whipped egg whites into the batter to lighten it, then carefully fold the remaining the egg whites into the batter.

Step 7

Divide the batter evenly among the prepared pans (be sure to fill the pans no more than 2/3 full) and smooth the tops. Bake for 30-35 minutes or until a toothpick inserted in the center comes out clean and the tops spring back when lightly pressed. Let the cakes cool in the pans for about 5 minutes before turning them out onto a wire rack or baking sheet to cool for a few more hours. Make sure they're entirely room temperature before applying any frosting.

Step 8

Place the chopped pecans into a pan and toast them over medium heat until lightly browned and fragrant, about 5 minutes.

Step 9

In a medium saucepan, combine the sugars, evaporated milk, egg yolks, cubed butter, and salt. Cook over medium heat, whisking constantly, until the mixture begins to boil and thicken, about 5-10 minutes. Remove from heat and stir in the toasted pecans, coconut, and vanilla extract. The frosting will look very soupy at first, but will thicken as it cools. Let cool for about an hour, until room temperature and spreadable.

Step 10

In a stand mixer fitted with a paddle attachment, whip the butter on medium speed until creamy and light in color, about 4 minutes. Scrape down the bowl and paddle and turn the mixer to low, then add powdered sugar, cocoa powder, milk, vanilla extract, and salt. Increase the speed to medium and beat for two full minutes.

Step 11

Once the cakes are fully cooled, torte each layer to level the tops. Fill a piping bag with Chocolate Buttercream and snip off about 1/2 inch opening. Starting with the bottom layer, pipe a circle of Chocolate Buttercream around the edge of the top and fill the inside with Coconut Pecan Caramel Frosting. Add the next cake layer on top and repeat the process of piping the Chocolate Buttercream circle and filling it in with Coconut Pecan Caramel Frosting. Add the final cake layer, upside down, on top. If you need it, here's a tutorial on this method of filling and stacking cake layers.

Step 12

Frost a thin layer of Chocolate buttercream all over the cake, smoothing the sides and top to create a semi-naked finish. Place the cake in the refrigerator for about 20 minutes to let the frosting firm up a bit.

Step 13

Fit a piping bag with Wilton Tip 1M and fill it with the remaining Chocolate Buttercream. Pipe swirls all around the top of the cake, then fill in the center with Coconut Pecan Caramel Frosting. Generously sprinkle the top with toasted pecans and coconut flakes. Frost a very thin line of Chocolate Buttercream around the bottom edge of the cake and press more toasted pecans and coconut flakes onto it.