Ingredients 

• 1tin condensed Milk
• 2/3 cup melted butter
• 2 cups flour
• 2 tablespoons cocoa powder
• 2 tablespoons baking powder
• 1/2 teaspoon baking soda
• 2 tablespoons sugar
• 3/4 cup water
• 1/2 teaspoon vanilla essence

Method:  

• Pre heat oven to 389 degrees F / 180 degrees C. 
• Grease cake tin and dust with flour. 
• Sift together flour, cocoa, baking soda and baking powder. 
• With a fork, beat condensed milk with butter until smooth. 
• Add dry ingredients and sugar. 
• Gradually add vanilla essence and water to form a smooth batter. 
• Pour into cake pan and place in centre of oven. 
• Bake for 1 hour.