Red Velvet Number Cake

Name: Red Velvet Number Cake
Prep time: 45 h
Cook time: 2 h 30 min
Total time: 2 h 30 min
Yield: 20 slices
Ingredients: 120 g unsalted butter; 300 g golden caster sugar; 2 large eggs; 40 g cocoa powder; red food colouring gel; 1 tsp natural vanilla extract; 240 g buttermilk; 300 g plain flour; 2 tsp baking powder; 1 tsp bicarbonate of soda; 3 tsp white wine vinegar; 200 g unsalted butter; 250 g icing sugar; ½ tsp natural vanilla extract; 200 g cream cheese; 532 g coloured chocolate sweets