Hot and sour tofu soup

Name: Hot and sour tofu soup
Prep time: 15 min
Cook time: 20 min
Total time: 35 min
Cuisine: Asian
Ingredients: 1 tbsp peanut oil; 8 small red chillies, with stems; 2 tbsp Gourmet Garden Lemongrass Paste; 2 garlic cloves, thinly sliced; 1 1/2 tbsp vegetable stock powder; 3cm piece fresh ginger, thinly sliced; 8 kaffir lime leaves; 2 star anise; 375g thick rice stick noodles; 300g firm tofu, cut into 1.5cm cubes; 1 tbsp tamarind puree; 1/4 cup (60ml) lime juice; Coriander sprigs, to serve; Long red chilli, thinly sliced, to serve