Since most families lived on farms and had their own chickens! cows , goats etc. they made their own cheese and of course massive vegetable gardens including wheat fields. To buy food was expensive so they sustained themselves with their own resources. Growing up pierogi were not the cultural cuisine they are today, they were an economic meal with home made cheese,home ground flour and home grown potatoes and onions and cabbage as week as the fruit and meat. The city relatives got their supplies from the family members still on the original farms.
When brought to North America new variations came with the addition of cheddar cheese to potatoes instead of cottage cheeses which is a little grainy.
Fried onions and bacon topped the plate and then you added sour cream. Deep frying is purely a North American spin.
We grew up on pierogi because they were a cheap meal. The same can be said for many Polish foods. They were made from what was on hand but oh so good!

YES! They can be frozen before boiling them. This is how my family (from the Cleveland area :)) keeps them after making. LOVE, LOVE, LOVE pierogies! It’s my favorite food! We make traditional potato as well as some with cabbage.
ENJOY!!

Thanks for sharing, I will be trying this way of making cabbage pierogis, I was missing the bacon. My husband will be very happy !