Preheat the oven to 180ºC. Prepare a 20cm cake pan (or a loaf tin like I used) by greasing it with vegan butter, and then dusting it with cocoa powder (tap out the excess).
In a medium bowl, mix the soy milk with the vinegar, and set aside to curdle.
Sift the flour, cocoa powder, baking powder, bicarb and salt into a large bowl and mix well.
Dissolve the coffee granules in ½ cup hot water, then add it to the curdled soy milk. Add the apple sauce, sugar and oil, and mix well.
Add the wet mixture to the dry mixture, and mix until combined (don't overmix!).
Pour the cake batter into the prepared cake pan, and bake in the preheated oven for 45 minutes. Check for doneness with a cake tester: if it comes out clean, it's done. If not, leave it for another 10 minutes.
When done, cool the cake pan on a wire rack. Once it's at room temperature, carefully slide a butter knife around the edge, place a dinner plate on top, and tip the cake out.
While the cake is cooling in the cake pan, prepare the ganache.
Set up a bain-marie by placing a small saucepan, with 5cm of water, over medium-high heat on the stove, with a glass or stainless steel bowl on top (it should be a little bigger than the saucepan).
Break or chop the chocolate up into small pieces, and place in the bowl. Keep an eye on the chocolate as it melts, stirring once in a while. DO NOT add even a single drop of water or other liquid!
Once the chocolate is melted, remove the bowl from the heat and stir in the coconut cream, followed by the powdered sugar.
Let it cool for 10-15 minutes, it'll thicken a bit, then drizzle it evenly over the cooled cake (which should be out of the pan and on the plate).
Crumble the Aero dark chocolate over the cake (optional).
Enjoy!