1.Melt the margarine and blend it with the water, oil and cocoa

2.Add the flour and the sugar and whisk them together

3.Add the eggs, bicarbonate and the vanilla essence teaspoon

4.Beat all the ingredients till get a uniform mixture

5.Add the chopped walnuts

6.Pour the mixture into a grassed pan and cook it for 30 min at 180 °C

7.You can always add some topping like Nutella, fruit or whatever you want