How to make
Heat the oven to 350°F (175°C). In a suitable bowl, mix together the flour, sugar, cocoa, salt and baking powder.
Pour in the water, oil and vanilla. Stir until everything is mixed very well.
Pour in another container and bake for 25 to 30 min. in the preheated oven. Let it cool for at least 10 min. and cut it into pieces.