Thai Red Curry Stuffed Sweet Potatoes

Name: Thai Red Curry Stuffed Sweet Potatoes
Prep time: 15 min
Cook time: 50 min
Total time: 1 h 5 min
Cuisine: Asian, Thai
Ingredients: 4 large sweet potatoes (about 250 grams each - or use a larger quantity of smaller sweet potatoes); 350 grams beef mince (*); 1 brown onion; 3 tbsp red curry paste (*); 2 tbsp coconut oil; 30 grams ginger ((a thumb-sized piece)); 2 tbsp fish sauce (or tamari, or gluten-free soy sauce); 1/2 cup coconut milk (plus it's good to have a little extra to help balance the flavour, possibly); 2 tsp arrowroot flour ((can substitute tapioca flour or corn flour)); salt and pepper (to season); coconut yoghurt; fresh coriander; chilli flakes