Preheat the oven to 180C / 350F degrees.
Grease 3- 16cm | 6 inches pans and line the bottoms with parchment paper.
In a large bowl, sift together flour, cacao and baking soda.
Add the coconut sugar and salt and whisk to combine.
Add the water, vinegar, vanilla and oil and whisk to combine. Don't overmix.
Using a scale, divide the batter equally between the three pans and bake for 20-25mins.
Remove from the oven and let cool down the cakes into the pans for at least 10 minutes.
Remove from pans and let cool down copletely before frosting.
If you're frosting the cake later, wrap each cake into plastic film and place in the refrigerator or up to one day.