BBC Food - Recipes - Steak Maman Blanc with sautéed potatoes

Ingredients

• 2 x 225g/8oz sirloin steaks (preferably organic), 2cm/¾in thick
• salt and freshly ground black pepper
• 1 tsp olive oil
• 20g/¾oz unsalted butter
• 110ml/4fl oz water
• 2 medium King Edward potatoes, cut into 2cm/¾in cubes
• 1 tbsp olive oil
• 10g/½oz unsalted butter
• 1 handful fresh flatleaf parsley , roughly chopped
• ½ banana shallot , finely chopped