Tempura Whiting with Asian Slaw

Ingredients

• Tempura Whiting: 12 whiting fillets
• 1 egg, chilled
• 250ml soda water, chilled
• 100g gluten-free plain flour
• 100g gluten-free cornflour
• 1 tsp salt
• Peanut oil, to deep-fry
• 1/2 Chinese Leaf, shredded
• 1 carrot, peeled and cut into matchsticks
• 3 green shallots, cut into thin strips
• 1 celery stick, cut into matchsticks
• 85g mayonnaise
• 2 tsp rice vinegar
• 2 tsp mirin
• 1 tsp gluten-free soy sauce
• 1 tbsp black sesame seeds, toasted
• Dipping sauce: 1/4 tsp chicken or fish stock cube, crushed
• 250ml water
• 2 tbsp gluten-free soy sauce
• 1 tbsp Japanese mirin