This soup is a "moovelous" way of using spare pumpkins bought for Halloween.
Place the pumpkin, onion, turmeric, sugar, nutmeg and milk in a large saucepan.
Bring to a boil, cover and simmer for 15-20 minutes.
Blend the flour with a little yogurt.
Add to the soup with the remaining yogurt.
Bring to a simmer, although do not boil.
To serve, garnish with toasted pumpkin seeds and a swirl of yogurt.