red gel or paste food colouring
2 tsp baking powder
500g/1lb 2oz caster sugar
550g/1lb 4oz icing sugar, sifted
500g/1lb 2oz self-raising flour
400g/14oz mixed jelly beans (or sweets of your choice)
2 tbsp white chocolate shapes, such as stars or hearts
280g/10oz unsalted butter, softened
9 free-range eggs, beaten
500g/1lb 2oz baking spread, plus extra for greasing
1–2 tbsp full-fat milk
200g/7oz raspberry jam