What is the beracha on ice cream with pieces of cookie dough inside to enhance the ice cream?
One makes a “Shehakol.”
Anything that contains “mezonos” ingredients usually requires a beracho “mezonos,” becuase if it there in order to satiate, or even to give significant taste, it becomes the “ikkar.” In this case, however, it seems that the main purpose of the bits of cookie in the ice cream is just to give a crunchy texture to the ice cream, and therefore they are considered as merely “flavorings” that are added to the food. The main thing is thus the ice cream, and so the beracha is Shehakol.
עי’ משנ”ב ריש סי’ רח בפרט בס”ק ט