Whole Beef Rump in Spice Crust with Rosemary Salmoriglio

Name: Whole Beef Rump in Spice Crust with Rosemary Salmoriglio
Ingredients: 2 tbsp fennel seed; 2 tbsp oregano; 2 tbsp black pepper corns; 2 tbsp coarse sea salt; The leaves of 1 bunch of rosemary; The leaves of 1 bunch of rosemary; zest & juice of 1 lemon; ½ tsp sea salt freshly ground pepper; ½ tsp sea salt freshly ground pepper; 100 ml (approx 3 fl oz/½ cup) good quality olive oil