Cut off the green part of the leeks and remove the hairy roots. Cut the white part into four, then into 1cm long pieces. Leave to soak a few minutes in cold water with vinegar, then rinse well.
Remove the large leaves of the cauliflower, and the stalk. Only keep the flowers. Soak a few minutes in water with a little vinegar. Cut the flowers into small 1cm cubes.
Peel and wash the potato, and cut into small 1cm cubes.
Cut the minced steak into small pieces.
Place the leeks in the steamer basket.
Place the potatoes in the steamer basket.
Place the cauliflower in the steamer basket.
Place the minced steak in the steamer basket.
Put water in tank 3 and start cooking.
Set aside the cooking juice.
Pour the content of the basket into the blending bowl.
Pour the olive oil into the blending bowl.
Add a part of the cooking juice depending of the desired texture.