How to make
Chop the onions finely and prepare the chicken wings.
Put a pan with oil on low heat, add the already chopped onions, soy sauce, Coca Cola, sugar and mustard. Stir until the sauce comes to a boil, you need to obtain a homogeneous mixture.
Sprinkle the wings with salt and black pepper, place them in an oiled tray.
Preheat the oven to 360°F (180 °C), place the chicken wings in it and bake 30 min.
Pour on the prepared sauce, then finish baking for another 10 min.