Eggless Chocolate Fudge Cake

• 315 ml soy milk (1 + ¼ cups)
• ½ Tablespoon apple cider vinegar (or lemon juice)
• 325 g self-raising flour (2 + ½ cups)
• ½ Teaspoon baking soda
• 3 Tablespoons unsweetened cocoa powder
• 250 g caster sugar (1 + ¼ cups)
• 180 g dairy-free butter (¾ cup, melted before measuring)
• 1 Teaspoon vanilla extract

For the chocolate fudge frosting:

• 185 g dairy-free butter (¾ cup)
• 500 g icing sugar (4 cups)
• 75 ml soy milk (5 tablespoons)
• 200 g vegan chocolate (7oz)

To top (optional):

• Few Tablespoons vegan chocolate shavings