Sweet & Smoky Eggplant Spread (Baklazhannaia Ikra)

• 2 large eggplants (about 1 pound each)
• Olive oil, vegetable oil, or canola oil for cooking 
• 2 medium onions, chopped
• 3/4 cup (6 ounces) tomato paste
• Kosher salt 
• Freshly ground black pepper

Directions

Preheat oven to 350°F.

Prick the eggplants all over with a fork and place on a foil-lined baking sheet. Roast in the center of the oven, turning over once, until soft, about 1 hour.  Let the eggplants cool in a colander in the sink, where their juices can drain. When cool enough to handle, press any excess liquid out. (This step helps to reduce any bitterness.)

Meanwhile, heat 1/4 cup of oil in a skillet over medium heat. Cook the onions, stirring occasionally, until soft and translucent, about 20 minutes.  Cut the eggplants in half and scoop out the flesh. Discard the peel. Using a large knife, chop the flesh very finely. (Avoid using a food processor, as you want the eggplant to be more textured than a purée.)

Add the eggplant to the onions along with the tomato paste, 3/4 teaspoon salt, and a couple good cracks of black pepper. Turn the heat to low-medium and cook, stirring frequently, for 10-15 minutes. Add more oil as necessary to prevent the mixture from sticking to the pan. (Be liberal with the oil; any excess will rise to the top as the mixture cools, and you can remove it then, if you wish.)  Transfer the mixture to a heat-proof bowl and let it cool completely before storing in the refrigerator. Adjust salt and pepper to taste before serving.

Taken from thekitchn.com