Make a pot of mashed potatoes (peeled and using about 8 medium sized) and add 2 cups of cheddar cheese. (preference is sharp.)
Mix (I use a kitchenaid with a dough hook). Roll out THIN (a pasta maker works wonders here. Make long strips of dough, 5 inches high. Emulating how you would fill ravioli, go down each and add a nice spoonful of mashed potato. Cut and fold each pierogi, sealing edges with a fork. Boil in a hot pot of water a few at a time until they float.
In a frying pan, melt 2 sticks of butter (margarine is okay) with a diced yellow or white onion. Add 16 oz of cottage cheese. Salt and pepper to taste. Serve over boiled pierogi.
This is THE Polish-Czech dish of my growing up. I love my Halupki and cabbage and sauerkraut. But nothing marks my unique cooking upbringing more than this dish. It takes time. It’s completely undiet friendly. But my dad taught me how to make this, we made it together, this IS one of my favorite memories. Enjoy.