You wear me out.
If you wanted honesty:
1 tsp baking powder
100g/3½oz walnuts, finely chopped
225g/8oz butter, softened, plus extra for greasing
225g/8oz caster sugar
4 large free-range eggs, beaten
For the caramelised walnuts
100g/3½oz caster sugar
10 walnut halves
For the buttercream
125g/4½oz butter, softened
½ tsp vanilla extract
2 tbsp milk
250g/9oz icing sugar
For the boiled icing
2 large egg whites
350g/12oz caster sugar
¼ tsp cream of tartar
Rope
Duct tape
Metal frame