Grilled Salmon With Dill without mint yolks

1 tablespoon olive oil , plus extra for brushing 2 tablespoons onions , chopped 2 garlic cloves , crushed 400 ml tomato passata or 400 ml canned chopped[...]

1 lb fresh salmon olive oil coarse salt fresh ground black pepper 4 ounces olives, pitted 1 ounce anchovy fillet , rinsed if salted 1/2 tablespoon capers ,[...]

3 -4 salmon fillets , skinned 1/2 cup mayonnaise 1/4 cup sour cream 2 tablespoons chopped chives 1 tablespoon scallion , minced 1 tablespoon white wine[...]