Preheat the oven to 180 degrees Celsius (FAN), 350 Fahrenheit FAN, gas 6, or static oven 200 degrees Celsius or 400 Fahrenheit.
Start by adding in a large bowl the sieved all-purpose flour, cocoa powder, salt, baking soda and mix well until you obtain a dry black forest cake mix.
In a jug, mix the oil, water, vinegar, and maple syrup, then start adding it a bit at a time to the dry mix; mix well with the fork and continue doing so until all of the wet ingredients and the dry ingredients are well mixed together, in a uniform, homogeneous mix.
Divide the vegan Black Forest cake batter into cupcake tins and bake in the center of the oven for 16-18 minutes; once the cupcakes are ready, remove them from the oven and allow them to cool down completely. Using a cooling rack greatly helps with speeding up the cooling downtime for the cupcakes.