Cut a thin slice from the eggplant off so it will stand firmly on the cutting board.

Slice eggplants about 0.3" / 0.75cm thick slices.

Rub salt on both sides of the slices.

Place the salted slices into a colander or any place where the moisture can drip off the eggplants for about 20 minutes.

Line a baking sheet with parchment paper and arrange the slices of the eggplant so they don't overlap much then lightly brush them with oil.

Bake them in a 450°F / 250°C oven for about 15 minutes.

Heat oil on high heat and saute the diced onions with the salt until a glassy / translucent look for about 3 - 5 minutes.

Add garlic and saute until it gets fragrant for about 1 - 2 minutes.

Mix in the ground meat.

Cook (brown) the meat until it gets an even color.

Add diced tomato, bay leaf, cinnamon and red wine.

On medium heat cook until most of the liquid evaporates for about 30 - 60 minutes.

Bring milk and butter to boil then take it off the heat.

Beat egg yolks until light yellow then mix a couple of spoonful of milk to the yolk.

On low heat stir the yolk and the cheese back into the milk.

It should thicken up like thick cream. Take it off heat and let it cool down.

Place a layer of eggplants onto the bottom of a casserole dish then spread the meat sauce on top.

Put on the top layer of eggplants and spread the sauce on. Sprinkle some leftover Parmesan on top.

Place it back into the 450°F / 250°C oven until golden brown spots start to appear on top for about 15 - 20 minutes.