Spiced carrot soup with smoked almonds

Ingredients

• 1 tablespoon extra virgin olive oil
• 2 brown onions (300g), chopped coarsely
• 4 centimetre piece fresh ginger (20g), grated finely
• 2 teaspoons ground cumin
• 1 teaspoon ground coriander
• 1/2 cinnamon stick
• 1 kilogram carrots, cut into 1cm slices
• 2 cups (500ml) vegetable stock
• 3 cups (750ml) water
• 3/4 cup (200g) greek-style yoghurt
• 2 cloves garlic, crushed
• 1/2 red onion (50g), sliced thinly lengthways
• 1/4 cup (40g) coarsely chopped smoked almonds
• 8 sprigs fresh coriander