Pierogis were never meant to be soft.

They were meant to crunch.

Start with frozen cheese pierogis.

Do not thaw.

Frozen pierogis create better texture.

Heat a skillet over medium-high heat.

Add butter and a touch of oil.

Butter for flavor.

Oil prevents burning.

Place pierogis flat side down.

Do not move them.

Let the crust form.

When the bottoms turn golden,

flip once.

Press gently.

This creates full surface contact.

More contact equals more crunch.

Lower the heat.

Add shredded mozzarella and provolone directly to the pan.

Let the cheese melt and bubble.

Do not rush this step.

Once the cheese starts to crisp,

stack two pierogis together.

Cheese side in.

This traps heat and stretch.

Flip the stack.