Pan-frying is another great way to cook pierogies, and it gives them a nice crispy crust on the outside. Simply heat some oil in a pan, add your frozen pierogies, and cook them until they're golden brown on both sides. It's like making pancake pierogies - who knew that was a thing?
How Do You Make Frozen Pierogies at Shirley Bock blog
One thing to keep in mind is that you need to stir those pierogies frequently, or they might burn to a crisp. And trust me, nobody likes a burnt pierogy - it's like a pierogy tragedy. But with a little practice, you'll be a pan-frying pierogy pro in no time!