Crispy Eggplant Parmesan in One Skillet, Golden and Bubbly Step-by-step instructions

Before you start

Gather every ingredient and tool before you turn on the stove, because frying moves quickly and the breading station needs to be ready when the oil is hot. Slice the whole purple eggplant into even rounds about one-third inch thick and sprinkle both sides with kosher salt. Lay them on paper towels so they can release some moisture.

Grate the hard cheese on the small holes of a box grater into a fluffy pile and set it aside. Slice or shred the mozzarella and keep it chilled until the topping stage. Set out three shallow dishes with flour, beaten eggs and breadcrumbs, and have a plate lined with paper towels ready for the fried slices. Measure the tomato sauce and keep it warm in a small saucepan so the skillet does not cool down when you add it.

Instructions

Fry the eggplant

1. 1Slice and salt the eggplant
   Trim the ends of the whole purple eggplant and slice it into even rounds about 1/3 inch thick with a chef's knife. Season both sides with kosher salt and lay the rounds on paper towels so they can rest while you prepare the cheese and breading.
   Look for Rounds are even in thickness and the surface looks slightly moist after salting.
   Tip Even slices cook at the same rate, so the edges crisp together.
2. 2Grate the hard cheese
   Grate the block of hard cheese on the small holes of a box grater until you have a fluffy pile of finely shredded cheese. Set it aside in a bowl, and slice or shred the mozzarella for the topping.
   Look for The cheese forms a light, fluffy pile with no large chunks left.
   Tip Freshly grated cheese melts more evenly than pre-shredded cheese.
3. 3Set up the breading station
   Place the flour, the beaten eggs and the breadcrumbs in three shallow dishes. Season the flour with a pinch of salt and pepper. Dredge each eggplant round in flour, dip it in egg, then press it into the breadcrumbs to coat both sides.
   Look for Each round has an even, dry coating with no bare spots.
   Tip Shake off excess flour so the egg sticks to the eggplant.

The eggplant rounds are golden brown and crisp at the edges, and the oil is bubbling steadily around each slice without smoking. Each piece should look even in color and feel firm when you lift it with the slotted spatula. Pat the fried rounds on paper towels so excess oil drains off before they go into the skillet.

Check that the coating has not darkened too quickly, which would mean the heat is too high, and adjust the burner before you fry the next batch. The smell should be toasty and savory rather than burnt, and the slices should be ready to layer without tearing.

Sauce and layer the stack

4. 4Fry the eggplant until golden
   Heat the vegetable oil in the cast iron skillet over medium-high heat with the crushed garlic cloves until it shimmers and bubbles around a breadcrumb. Fry the eggplant rounds in batches for 2 to 3 minutes per side, then transfer them to paper towels.
   Look for Oil bubbles steadily and the edges turn golden brown and crisp.
   Tip Crowding the pan drops the oil temperature and makes the coating greasy.
5. 5Sauce and cheese the skillet
   Remove the garlic and spoon the tomato sauce into the skillet. Scatter a handful of the shredded hard cheese over the fried eggplant rounds and place them in the skillet over the sauce, letting the cheese melt and brown at the edges.
   Look for Sauce is spread evenly and the cheese begins to melt and turn golden.
   Tip Spoon the sauce in an even layer so no slices sit on bare metal.
6. 6Layer and stack the slices
   Stack the remaining fried eggplant in layers, spooning sauce and sprinkling grated cheese between each layer. Top the stack with the sliced mozzarella and the rest of the grated cheese so it covers the surface.
   Look for Each layer is covered with sauce and cheese, with mozzarella on top.
   Tip Keep the stack compact so the top layer stays crisp.

The tomato sauce covers the bottom of the skillet in an even layer, and the grated cheese scattered over the fried slices has started to melt and turn golden at the edges. Look for small pools of melted cheese and a faint sizzle when the sauce meets the hot pan. Make sure no slices are sitting on bare metal, because uncovered metal can scorch the crust. Before moving on, check that the sauce is hot and simmering gently, and that the cheese is spread across the pieces so the layers will hold together when stacked.

Melt the mozzarella

7. 7Melt and brown the topping
   Place the skillet under the broiler or in a hot oven until the mozzarella melts completely and bubbles at the edges with golden spots on top. Let it rest for 5 minutes before slicing so the layers hold together.
   Look for Mozzarella is melted, bubbling and golden in patches across the top.
   Tip Watch closely under the broiler, as cheese browns in under a minute.
8. 8Plate with sauce and basil
   Spoon a pool of warm tomato sauce onto each serving board or plate. Lift out a portion of the eggplant stack and set it on the sauce, then top with fresh basil leaves and a little extra grated cheese.
   Look for The plated slices show a bubbly, golden cheese crust over the sauce.
   Tip Tear the basil just before serving so it stays bright green.

The mozzarella has melted fully, bubbles at the edges and shows golden spots across the top. The sauce should be simmering around the edges of the stack and the cheese should look glossy rather than dry. Before you serve, check the center of the stack, which should be hot all the way through. Let the dish rest for about five minutes so the slices set, then spoon sauce onto the plate, lift out a portion with a spatula and top it with basil. The finished surface should look bubbly, golden and inviting, with clear layers of eggplant visible at the cut edge.

Common mistakes

The most common mistake is overcrowding the skillet. Adding too many slices at once drops the oil temperature, so the coating absorbs grease and turns soft instead of crisp. Fry in batches, and let the oil return to a steady bubble between batches. A second common error is skipping the paper towels. Excess oil left on the fried rounds will pool in the sauce and make the top greasy.

Another mistake is pouring the sauce on too thickly, which steams the bottom layer and softens the breading you worked to build. Spoon the sauce in an even layer and let the cheese do the rest of the binding. Finally, do not rush the rest time. Cutting into the stack straight from the heat makes the layers slide apart, so give it about five minutes to set.

How to tell it’s done

The eggplant is ready when the edges are golden brown, crisp and firm, and the flesh is tender when you press a slice gently with a spatula. Fried rounds should lift cleanly from the oil without tearing. For the finished dish, look for mozzarella that has melted completely and turned golden in spots across the top, with sauce bubbling gently around the edges of the stack.

The center of the stack should be hot all the way through when you test it with a thin knife or spatula. Eggplant is a vegetable, so there is no meat or egg temperature to check, but the stack should be steaming and the cheese should be stretchy when you lift a serving.