Altered ingredient amounts.
i've made this soup twice now and it's abolutely delicious. however i'm a lover of spices, and found that the amount of pumpkin and pototoes in the original recipe are too much in relation to the amount of spices used. therefore, 2nd time round, i only used about half the amount of potatoes, and the result was much better. think i chucked in a few extra cloves of garlic too. **UPDATE**: i've since realised that the sweet potatoes i get here in the netherlands are *huge* in comparison to the size in other countries - an average sweet potato weighs 400 grams - that's probably why i found that there was too much potato in the recipe.