Creamy polenta with prawns

Ingredients

• 400 g raw large prawns, shelled and deveined
• 1 tbsp Kikkoman Naturally Brewed Soy Sauce
• hot sauce, to taste
• 1 clove garlic, finely chopped
• 2 spring onions, finely sliced (reserve the green parts)
• 1 tbsp ketchup
• 75 ml milk
• 250 ml chicken stock
• 40 g polenta
• 10 g butter
• 10 g mascarpone
• 10 g mature cheddar, grated
• 60 g sweetcorn kernels
• White pepper
• 250 ml good-quality chicken stock
• 1 star anise
• 1 tsp Kikkoman Naturally Brewed Soy Sauce
• 1 tbsp double cream
• Nigella seeds
• 1 fresh lime