Seafood paella

Ingredients

• 4 cups diluted homemade fish or chicken stock
• 2 cups water
• 1 small onion (halved)
• large pinch saffron threads
• 1/4 cup olive oil
• 2 large garlic cloves (crushed)
• 1 red pepper (deseeded and chopped)
• 2 1/4 cups paella or risotto rice
• 2/3 cup dry white wine
• 12 oz firm white fish (skinned and cut into chunks)
• 1/2 lb raw shrimp (peeled, thawed if frozen)
• 1/4 lb squid (cleaned and sliced)
• 5 oz asparagus (trimmed and sliced)
• 2 large tomatoes (peeled, deseeded and chopped)
• 12 olives (pitted, sliced)
• 2 tbsp fresh parsley (chopped)
• 1 tbsp lemon juice
• 1 398ml can artichoke hearts (drained, rinsed and halved)
• 8 small lemon wedges
• 2 tbsp fresh parsley (chopped, extra)