Dice your potatoes and place them in the bottom of the soup maker and continue chopping and placing them until they reach the minimum line in the soup machine.
Peel your garlic and add this too (no need to grate it).
Once the garlic and potatoes are done clean and then chop the leeks. Place them also into the soup maker until they hit the max line.
Add the seasonings on top and pour 250ml of water over it so that it seeps to the bottom.
Place the lid on the soup maker and set it on the chunky soup function and it will cook it for 28 minutes.
When it has finished give it a stir around you you’ll notice there is hardly any liquid. Give it a good prick with a fork like you would if you were testing to see if potatoes were ready for mashing. The fork pricking will then break down the potatoes and it will be easy for blending.
Add the Greek yoghurt and place the lid back on and blend it.
If it is too thick add a little water and then serve with croutons