Prepare Ingredients: Gather all ingredients for a tidy and smooth cooking process.

Prepare the Oven & Cake Pans: Preheat the oven to 350 degrees (F) and prepare the cake pans with cooking spray and line up parchment papers.

Melt the Chocolate: In a heatproof bowl, melt the rich dark chocolate for 20 - 30 seconds. Or, you can do this by placing the bowl over a pot of simmering water (double boiler). Stir until smooth and set aside to cool slightly.

Combine the Dry Ingredients: In a large mixing bowl, sift together the all-purpose flour, baking soda, baking powder, and sea salt. Set aside.

Combine the Wet Ingredients: In another bowl, combine the granulated sugar, eggs, vanilla extract, and vegetable oil. Mix until well combined. Add the melted chocolate to the wet ingredients and mix until smooth.

Mixing: Gradually add the dry ingredients to the wet ingredients, alternating with the buttermilk. Begin and end with the dry ingredients, mixing each addition until just combined. Then add the brewed coffee to the batter and mix until smooth. The coffee enhances the chocolate flavor.

Placing the Mixture: Place the mixture into three 8-inch greased cake pans about 3/4 full, so the cake doesn't rise too much or overflow.

Baking: Bake in the preheated oven for approximately 20-25 minutes.

Check with Toothpick: Use a toothpick to check if the cake is finely baked. Cake is done when a toothpick comes out clean.

Frosting: Beat the butter and cream cheese for about 2 minutes. Slowly add the sifted powdered sugar and cocoa powder intermittently with the heavy whipping cream. Add the vanilla, salt, more cream and other ingredients; then beat for 2 to 3 minutes.