I've made this twice...once as written and once with changes to the meatballs. I found that the meatball mix (as written) was a little soggy. I think the combo of fresh breadcrumbs and the milk was too much moisture.
So when I made it again, I used dry (storebought) bread crumbs and less milk, which helped. I also added a parmesan cheese rind during the simmer. The soup is delicious, but if you are picky about meatballs, you might want to make changes to that part. ;)

I would give this more stars if I could. My absolute favorite of all her recipes! The mascarpone makes this creamy and wonderful.