Fresh Prawn Spring Rolls

Name: Fresh Prawn Spring Rolls
Prep time: 20 min
Cook time: 1 h
Total time: 1 h 20 min
Cuisine: Asian, Vietnamese
Ingredients: 40 g carrots; 1 tsp fine sea salt; 1300 g water; 8 fresh green beans; 1 bunch rice vermicelli; 8 large raw prawns, peeled; 8 pieces spring roll rice paper; 8 leaves iceberg lettuce; 1 garlic clove; ½ fresh red chilli; 2 Tbsp caster sugar; 2 Tbsp lime juice; 2 Tbsp fish sauce; 1 Tbsp rice vinegar