Sweet Potato Cauliflower Soup, round 2

I made this again for a party at work yesterday. I added some chili powder to the garam masala and oil - maybe 3 little shakes - and it didn't make any noticeable difference, but I think a little spice would be nice to counter the sweetness.
I also added carrots - about 20 baby carrots cut into thirds - and boiled them with the potato. I would not recommend it, they didn't get as soft and I ended up having to fish them out to make sure they went in the blender, or smashing them individually with the spoon. Maybe if they were shredded it would go better? They didn't make much noticeable difference either, though.