In a bowl, combine 200 g of sugar, 25 g of cocoa powder, 200 g of plain flour, 1 tsp of baking soda, and a pinch of salt.
Pour in 240 g of water and 100 g of vegetable oil, followed by 1 tsp of white wine vinegar.
Mix everything together until the batter is smooth and free of dry lumps.
Transfer the batter into a 9-inch round cake pan or any shape you prefer.
