Robot cake

Basic chocolate cake

• 200 g unsalted butter, cut into pieces and softened, plus extra for greasing
• 600 g plain flour
• 80 g Dutch cocoa powder
• 540 g white sugar
• 2 tbsp baking powder
• 2 pinches salt
• 500 g full cream milk
• 2 tsp natural vanilla extract
• 4 eggs, room temperature

Buttercream icing

• 500 g icing sugar (see Tips)
• 240 g unsalted butter, cut into pieces and softened
• 1 tbsp boiling water
• 1 tsp natural vanilla extract

Assembly

• lollies of choice, for decorating