Ingredients

• 1 tbsp olive oil
• 2 cloves garlic, finely chopped
• 2 cm ginger, peeled and finely chopped
• 1 onion, finely sliced
• 1/2 tsp chili powder
• 1/2 tsp turmeric
• 3 pints vegetable stock
• 1 medium butternut squash, cut into chunks
• 1 large sweet potato, cut into chunks
• 4 large carrots, sliced
• salt and freshly ground pepper to taste