1. Heat oil in a large sauté pan over medium-high heat. Add the onions and caramelize for 20-30 minutes over medium heat, stirring frequently. If the pan becomes too dry or brown, add 1 tablespoon of water to deglaze the pan. Once they are golden brown, add the wine and cook until reduced. Chill in the refrigerator for 10 minutes.
2. Combine Italian seasoning, parsley flakes, garlic powder, salt, pepper, sour cream, mayonnaise and blue cheese crumbles in a mixing bowl. Add the onions, stir until well blended.
3. Serve with pita chips.