Once you’ve made your perogies, you have 2 options:
You can boil them in batches for 6 – 8 minutes, then drain, and toss them in a little melted butter. Or, sauté them in a little butter for 5 minutes until slightly crispy. Top either way with sautéed onions, crisp bacon, and sour cream.
You can place them evenly spaced (not touching) on a baking sheet in the freezer until they’re frozen. Then place the perogies in a closed container until you’re ready cook them. Boil them from frozen for about 10 minutes.