Vietnamese bun cha with rice noodles - Gluten-Free Heaven

Ingredients

• 25 g caster sugar
• 75 ml cold water
• 1 lemongrass stalk, outer leaf removed, roughly sliced
• 5 cm (2in) piece of fresh ginger, peeled and roughly chopped
• 1 large garlic clove, peeled and roughly chopped
• 1 grated zest and juice of 1 lime
• 500 g pork mince, 10% fat
• 1 tsp gluten-free fish sauce
• freshly ground black pepper
• 1 red chilli, chopped
• 1 spring onion, sliced
• fine rice noodles
• 1 gem lettuce, leaves separated and washed
• 2 carrots, peeled and julienned
• 15 cm cucumber, cut in half, then into sticks
• 2-3 radishes, very finely sliced
• 2 tbsp unsalted roasted peanuts
• a handful of fresh coriander
• a handful of fresh mint leaves
• 1 tbsp caster sugar
• 75 ml hot water
• 1 juice of 1 lime
• 1 tbsp gluten-free fish sauce
• 2 tsp rice vinegar
• 1 large red chilli, very finely chopped