Prawn and Sweet Potato Fritters

Name: Prawn and Sweet Potato Fritters
Prep time: 40 min
Cook time: 55 min
Total time: 55 min
Yield: 24 pieces
Ingredients: 300 g sweet potatoes; 30 g fresh coriander; 3 spring onions; 300 g prawns, raw, peeled, deveined; 100 g plain flour; 150 g water; 1 pinch baking powder; 1 pinch fine sea salt; 1 pinch ground white pepper; 1000 g vegetable oil; 2 limes; 200 g sweet chilli dipping sauce