Beef Sirloin with a Chimichurri Sauce and Crispy Fried Vegetables

Ingredients

• 2 x 200g piece sirloin
• ½ oxo beef cube
• 25ml olive oil
• 25g butter
• Salt
• pepper
• 250g self-raising flour
• 250ml fizzy water
• 1 pinch salt
• 1 large onion, peeled and cut into thick rings
• 200g broccoli, sliced
• 200g cauliflower, sliced
• 50ml red wine vinegar
• 1 green chilli
• 1 shallot, diced
• 1 small bunch coriander
• 1 small bunch mint
• 100ml olive oil
• Pinch dried oregano
• Vegetable oil for frying