Santa Maria Style Beef with Chimichurri

Ingredients

• 1kg beef tri-tip – or use a rump
• 2 tbsp Maldon salt
• 1 tsp Ground Black Pepper
• 1 tsp Onion Powder
• 1 tsp Celery Salt
• 1 tsp Garlic Powder
• 4–5 anchovies in oil from a jar
• 1 small handful of capers, drained
• 1 clove garlic, peeled
• 2 tbsp white wine vinegar
• 1 tbsp Dijon mustard
• juice of 1 lemon
• big bunch of parsley, roughly chopped
• big bunch of basil, roughly chopped
• 100ml olive oil
• freshly ground black pepper