Sirloin with herby mustard crust & shallot gravy recipe | Good Food

Ingredients

• 3 tbsp sunflower oil
• 1 ½kg piece of sirloin trimmed but not rolled
• 100g white sliced bread crusts removed
• 1 tbsp thyme leaves
• 3 large handfuls parsley leaves
• 2 tsp English mustard powder
• 50g gruyère cheese, grated
• 300g bag of small shallots trimmed and peeled
• 1 tbsp plain flour
• 175ml red wine
• 500ml beef stock or consomme