1
Heat the oil in a large saucepan over medium heat. Add the onion, garlic, carrots and celery and cook, stirring, until softened, 5-7 minutes.
2
Add the squash, yam, spices, stock, coconut milk, salt and pepper, and bring to a simmer. Cover and simmer for 20 minutes or until the vegetables are very tender.
3
Purée with an immersion blender or regular blender. Stir in the vinegar and adjust the seasoning.
4
Combine the cumin yogurt ingredients in a bowl. Purée in a blender if you like a very smooth consistency.
5
To serve, divide the bisque between bowls, top with cumin yogurt and garnish with pumpkin seeds, fried shallots and cilantro.