I"ve never made them fresh, just the frozen kinds, so I am by no means an expert.
Here’s a link to Baba’s Homestyle Perogies in Saskatoon:
https://babasperogies.com/menu/
And Peg’s Kitchen in Regina:
https://www.pegskitchen.ca/products
Perogies
Bet you can’t eat just one! Quality and taste are second to none in the business. Whether you’re a perogie rookie or a perogie connoisseur, we’ve got something for everyone. Try one of these fantastic flavors: Cheddar Cheese & Potato Potato, Bacon & Romano Cheese Cottage Cheese & Potato Potato & Onion Cottage Cheese Sauerkraut & potato Saskatoon Plum Four dozen to a box. Also we have 18 cooked in a tray (cheddar cheese only)
I believe the word vareniki is derived from the verb varit’, “to boil.” The ones I’ve had all had some kind of fruit in them.
Whether they’re ever sauteed in butter like pierogi, I can’t say.
Ok those look similar. When you said “small” I thought you meant something like penny or quarter sized.
We rarely served our pierogi sautéed. Usually only boil for us, though you may toss in butter. Meat pierogi we would often fry a bit with bacon, though. Fruit pierogi served with sour cream beaten with sugar.
You evidently have not seen my apple dumplings. 
That’s a popular way to make them, with butter, bacon and chopped onions.
(Topped off with sour cream to plug any gaps in the arteries left by the bacon and butter.)
Has it been mentioned that Chicken Kiev is NOT Russian except it has a Russian word in the name?
Latvian piragi. Bacon turnovers is a better description than bacon buns. My grandmother’s were amazing. These are small, like about 4" long crescents.
We had the Lithuanian version here, lasineciai, which went by “bacon buns” in English, but were quite bun-like. They were divine. At one particular bakery known for them, you had to show up by 8 am to have any chance of snagging them.
thank you for the reminder of the horrour of finding holodets in the fridge. my mum loved this stuff. i found it oogie. it could be used as a discipline devise, "behave or you get the “holodets!”.
of the popular slavic food i usually eat vareniki, blini, latkas, and upon occasion kielbasa. i could eat a 5 pound loaf of really good rye bread all by myself. sour cream is a life giving food.
I just remembered that McDonald’s in Russia sold deep-fried mashed potato pirozhki for a while back in the ‘90s. Nothin’ like having a ball of hot lead in your stomach at lunchtime! 