Vegan Orange and Coconut Cake

Name: Vegan Orange and Coconut Cake
Prep time: 30 min
Cook time: 2 h 40 min
Total time: 2 h 40 min
Yield: 20 slices
Ingredients: 675 g plain flour; 450 g caster sugar; 3 Tbsp vanilla sugar; 3 tsp baking powder; 1 ½ tsp bicarbonate of soda; 2 Tbsp orange zest; 150 g sunflower oil; 600 g sparkling mineral water; 150 g orange juice, freshly squeezed; 160 g orange juice, freshly squeezed; 50 g cornflour; 400 g coconut milk; 1 cinnamon stick; 5 g orange peel; 60 g sugar; 210 g vegan margarine; 250 g icing sugar; 3 Tbsp natural vanilla extract; 1 pinch fine sea salt; 100 g desiccated coconut; 2 oranges