In a large saute pan over medium high heat add the frying oil add the diced eggplant and fry until golden . Remove and set aside on paper towels. Remove the frying oil from the pan and add the 2 Tablespoons of the olive oil/ lower the heat
Add the onions and garlic cook until soft and translucent
Add the tomatoes and cook until the tomatoes burst.
mix the sugar with the vinegar and add to the tomato mixture along with the marinara sauce let it simmer for 15- 20 minutes. Then add the fried eggplant, olives and capers simmer an additional 5 minutes.
Add in the basil.