2–3 tsp black gel food colouring
1 tsp black gel food colouring
1 tsp baking powder
275²µ/9¾´Ç³ú caster sugar
3 tbsp cocoa powder
1 tbsp cornflour
500g/1lb 2oz icing sugar, sifted
140ml/4¾fl oz neutral oil (such as vegetable), plus extra for greasing
pinch fine salt
350g/12oz self-raising flour
1 tbsp vanilla extract
2 tsp vanilla extract
2 tsp apple cider vinegar or distilled white vinegar
150g/5½oz vegan dark chocolate
25g/1oz vegan butter
250g/9oz vegan baking spread, softened
185ml/6½fl oz unsweetened soya milk, at room temperature
4 tbsp unsweetened soya milk, hot
1 tbsp unsweetened soya milk
185g/6½oz unsweetened soya yoghurt, at room temperature