Smoky chilli con carne with crispy Bambara groundnuts

Name: Smoky chilli con carne with crispy Bambara groundnuts
Cuisine: American, Mexican, Latin American, TexMex
Ingredients: olive oil, to sauté + extra, to fry; 1 leek, sliced; 2 garlic cloves, peeled and finely grated; 1 fresh red serenade chilli, seeded and sliced (find at woolworths.co.za) + extra, to garnish; 1 carrot, peeled and grated; 1 tbsp sweet smoked; paprika (find at yuppiechef.com); 2 star anise; 500g beef mince; 2 chipotle peppers in adobo sauce, chopped (find at azteca.co.za); 1 tsp Marmite; 1 tsp Worcestershire sauce; 1 x 400g tin peeled and diced tomatoes; 100g sun-dried tomatoes, rehydrated; 30g fresh coriander + extra, to garnish; 500ml (2 cups) water + 2L (8 cups) extra; salt and freshly ground black pepper, to taste; 380g Bambara groundnuts, soaked overnight; 1 tbsp cumin seeds; sour cream, to serve