01 - 
                Take your potatoes out of the oven, let them cool enough to grab, toss a bit of chopped parsley on top if you want, and eat up.
              
              
              
                02 - 
                Bake those potatoes for about 25 to 30 minutes at your set temperature. Give them a stir halfway so they brown up nice and even and get crispy.
              
              
              
                03 - 
                Layer your mustard-coated potatoes out flat on your parchment-lined tray. Try not to crowd them.
              
              
              
                04 - 
                Drop in your halved potatoes and toss everything around with your hands or a big spoon. Make sure all pieces get mustard everywhere.
              
              
              
                05 - 
                Mix up olive oil, Dijon, grainy mustard, onion and garlic powder, plus some salt and pepper. Whisk till it looks creamy and blended.
              
              
              
                06 - 
                Turn your oven on to 220°C and let it get hot first.