Chocolate Cake

• 360 g 3 cups (750 ml) cake flour
• 245 g 1¼ cups (310 ml) sugar
• 16 g 4 tsp (20 ml) baking powder
• 4 g 1 tsp (5 ml) bicarbonate of soda
• 36 g 6 tbsp (90 ml) cocoa powder
• 500 g 2 cups (500 ml) hot water
• 125 g ½ cup (125 ml) buttermilk
• 60 g 5 tbsp (75 ml) sunflower oil
• 30 g 2 tbsp (30 ml) white grape vinegar
• 2 tsp (10 ml) vanilla essence

Chocolate topping

• 120 g 150 ml sugar
• 300 ml water
• 15 g 1 tbsp (15 ml) soft tub margarine
• 24 g ¼ cup (60 ml) cocoa powder
• ½ tsp (2,5 ml) vanilla essence
• 23 g 3 tbsp (45 ml) cornflour
• 6 g 1 tbsp (15 ml) grated chocolate