Mackerel with tomato sals on toast Author: www.ukshallot.com Serves: 4 Ingredients 6 shallots, peeled and sliced finely 1 tbsp capers 1 tbsp olive oil 2 tsp red wine vinegar 1 tsp lemon juice 4 tomatoes, chopped small bunch parsley, chopped salt 8 smoked mackerel fillets 8 slices of sourdough bread Instructions To make the dressing,