chocolate banana cake

recipe from joyofbaking

Ingredients
2 cups granulated white sugar
1 3/4 cups  all-purpose flour
3/4 cup  cocoa powder
1 1/2 teaspoons baking powder
1 1/2 teaspoons baking soda
1/2 teaspoon salt
2 large eggs
1 cup mashed ripe bananas (about 2 medium sized bananas)
1 cup  warm water
1/2 cup  milk
1/2 cup corn, sunflower or canola oil
1 1/2 teaspoons vanilla essence

Method
1. Preheat oven to 180 degrees C and place rack in the center of the oven. Butter, or spray with a non stick vegetable spray, a 9 x 13 inch (23 x 33 cm) pan. Set aside.
In a large bowl whisk together the sugar, flour, cocoa powder, baking powder, baking soda, and salt. Set aside.
2. In another large bowl, whisk together the eggs, mashed bananas, water, milk, oil, and vanilla extract. Add the wet ingredients to the dry ingredients and stir, or whisk, until combined. You will notice that the batter is quite thin. Pour the batter into the prepared pan and bake for about 35 to 40 minutes or until a toothpick inserted in the center of the cake comes out clean.
3. Remove from oven and let cool on a wire rack. When completely cooled, dust with icing sugar.