We roast bell peppers in the oven or on a grill tray with a little oil To prepare onion sauce, mix olive oil, vinegar, garlic, salt, roasted bell pepper, black pepper, sugar, lime juice, oregano, and paprika in a food processor. Take 4 soup spoons from the sauce and pour the rest on the chicken and rub it with your hands until the chicken eats it. Then put it in the oven at 200 degrees Celsius for one hourBoil the rest of the sauce until it thickens and mix with mayonnaise and serve with potatoes.