It was actually my search for a substitution for the dry cottage cheese that my Grandma used in her blintzes that got me to register for Recipezaar. After the fish market closed that carried the dry cottage cheese she used (crumbly like feta cheese), I've never been able to find it again. I finally found the soft Farmer's cheese she said was an acceptable substitute at a local international grocery store. If you can't find either type of cheese, you can substitute ricotta cheese but it won't taste exactly the same. My Grandma also insisted that you must use a blender as directed for making the crepe batter. This recipe takes a while, so it's worth it to make extra for the freezer. While most people eat blintzes for breakfast, my Grandma always served them as a side dish for special family dinners.