In a large bowl and mix well with a spoon flour, sugar and cocoa. Add milk and soda, finally the oil and vanilla. Bake in a preheated oven 180C degrees, 45 minutes in pan 25 cm. Once cool pour the hot syrup prepare as boiled water with sugar. Let stand until the sweet syrup take nice. Then prepare sauce as a water bath and smashing mix well with milk sugar, the butter and chocolate. Pour the cake. Once the glaze harden nice cake is ready. Optional, can decorate it with coconut, walnuts and others. * 1 cup = 250 ml