Season, to taste, with salt and freshly ground black pepper. To serve, place the anchovy-crusted pollock on a large plate and spoon the cherry tomato dressing on top.
To make the anchovy dressing, heat the oil in a frying pan and fry the anchovies and garlic. Pour in the double cream and bring to the boil. Whisk in the butter and remove from the heat.
Add anchovies and vinegar, and crush or process again to form a uniform paste. Slowly drizzle in 7 tablespoons olive oil, whisking or processing until dressing emulsifies. Heat a large griddle or ...