Combine first 6 ingredients in a large bowl, stirring well. Slowly drizzle oil into vinegar mixture, stirring constantly with a whisk. Add lettuce; toss to coat. Arrange salad on a platter with sausage, cheese, Brown Soda Bread, and cornichons. Place Tomato Chutney in a bowl; add to platter.
Made this last night, and my family loved it! Definitely worthy of a special occasion. Served alongside a glass of Irish extra stout. I will definitely put this platter together again--simple and rustic.