You will use a stove to boil for this method. Boil water in a big pot. When it's already boiling, add a package of frozen pierogies and continue boiling them for around 1 to 2 minutes or until they all float.
The quickest method is to microwave-boil them. In a microwavable bowl, add the frozen pierogies. Add enough water to completely submerge the pierogies.
After boiling the pierogies or while they are still frozen, you can saute them. Over medium heat, melt butter or put olive oil, or a combination of these two in a big skillet.
For a slightly crispier alternative, bake frozen pierogies. On a baking sheet that has been lightly greased with cooking spray, arrange the frozen pierogies.
If you prefer your pierogies extra crispy, deep fry them. Choosing a sizable, deep skillet or pot, add cooking oil. Be sure there is enough oil to completely cover the pierogies.