Red velvet cupcakes

Name: Red velvet cupcakes
Ingredients: 100g/3½oz unsalted butter, softened; 260g/9¼oz granulated sugar; 2 free-range eggs; 1 tsp vanilla extract; 2 tbsp cocoa powder; 2 tbsp vegetable oil; 2 tsp red food colouring gel (natural food colouring won’t work here); ¼ tsp fine salt; 250g/9oz plain flour; 1 tsp bicarbonate of soda; ½ tsp baking powder; 120ml/4fl oz natural yoghurt; 1 tsp apple cider vinegar; 55g/2oz unsalted butter, softened; 250g/9oz cream cheese, room temperature; 150g/5½oz icing sugar