Sirloin Steak with New Potatoes and Chimichurri

Name: Sirloin Steak with New Potatoes and Chimichurri
Prep time: 20 min
Cook time: 40 min
Total time: 40 min
Yield: 6 portions
Ingredients: 2 garlic cloves; 50 g shallots; 10 g fresh coriander; 10 g fresh parsley; 1 Tbsp dried oregano; 100 g extra virgin olive oil; 30 g white wine vinegar; ½ tsp dried chilli flakes; 15 g freshly squeezed lemon juice; 1200 g water; 2 Tbsp olive oil; 2 ½ tsp fine sea salt; 700 g new potatoes; ½ tsp ground cumin; ½ tsp ground coriander; 1 pinch ground cayenne pepper; 1000 g beef sirloin