Here's a recipe for basic chocolate cake. It's so super easy that I've memorized it and I think you may too. I often make it a double layer cake, but I've even gone so far as making a grand 3-layer one. I caution that. ;)
All you need here is one big bowl to mix the dry ingredients, and a smaller bowl for the wet. Combine the wet into the dry, mix, and put in a 9" (ish) cake pan. Bake at 350 for 30-35 minutes. Ta-da!
Vegan Chocolate Cake
(Makes one cake layer- double recipe for two layers, and divide in two cake pans)
1 1/2 cup unbleached flour
1 cup sugar
1/4 cup coco powder
1 tsp baking soda
1 tsp salt
1 cup cold water
1/4 cup oil
1 tbsp white/rice/apple cider vinegar
1 tsp almond extract
For this I've always been pretty loose and gone without a recipe. However, next time I make it I'll be sure to write out some measurements. As a fudge layer in the middle I combine dark chocolate (no milk products in it), chopped almonds, some icing sugar, a little coconut oil, a few drops of almond extract and about 1/2C well-pureed chickpeas. Melt it all over a double boiler until it's a good consistency and taste, and then spread it between cooled cake layers- about 1cm thick.
(Also without a recipe- sorry!) Over a double boiler melt together dark chocolate, icing sugar, 1tsp vanilla and 1tbsp coconut oil. Add more chocolate and icing sugar until you get a good consistency. It will harden once cooled in a fridge. You could also add any left over fudge layer to the icing and make a bit of a thicker icing. Your call!
PS. Vegan chocolate cake is ALWAYS a hit.