Roast beef with all the trimmings Author: George Payne Serves: 6 Ingredients 1.3kg lean rump roast, topside joint or silverside 1tbsp English mustard powder salt and freshly milled black pepper For the Yorkshire puddings: 175g strong plain flour pinch salt 2 large eggs, beaten 1tsp fresh thyme leaves 300-400ml milk 2tbsp sunflower oil or