For the grated carrots, I do this in a food processor with the standard blade until they are finely ground and moist but not pureed but be sure to peel them and cut them into chunks and cut the ends off first! I also suggest using regular carrots instead of peeled baby carrots as the big carrots have more flavor. If you can’t find mascarpone, just use more cream cheese. Mascarpone is an Italian-style cream cheese that is lighter and has a beautiful rich flavor.