Roast beef sirloin with juniper and black pepper recipe | Sainsbury`s Magazine

Ingredients

• 1 tbsp black peppercorns
• 15 juniper berries
• 3 garlic cloves, chopped
• 2 tbsp thyme leaves, plus 5-6 whole sprigs
• finely grated zest of 1 lemon
• 1 heaped tsp sea salt flakes
• 3 tbsp olive oil
• 1.8kg rolled beef sirloin
• 1 onion, peeled and sliced