Peel and slice the potatoes and set aside in a big bowl

Give the vegetable stock, vinegar, oil, salt, pepper and onion to a food processor and mix until you have a smooth dressing. As an alternative you can also cut the onion in pieces and mix everything else together using a fork

Add the dressing to the potatos, stir through and set aside for 1-2 hours. Mix through occasionally and add salt if desired

Right before serving add the lettuce

First we have to peel the potatoes and cut them into the desired shape. The smaller you cut the potatoes the mushier the salad will get. I prefer to keep the potato at least a little firm so I aim to keep the pieces a little bigger. Halving and then slicing the potato is ideal. Give the potatoes in a big bowl and set aside.

Now we have to decide whether you want onion pieces or want to make the onion part of the dressing. Onion pieces add a little more crunch to the salad but the onion taste will also be a bit sharper. If we go with pieces, slice the onion in the desired size and add to the potatos. If we make it part of the dressing just cut the onion in chunks and add at the next step.

Add the vegetable stock, vinegar, oil, salt, pepper and as the case maybe the onion to a food processor and process until you have a smooth dressing. If you want the onion in pieces you can as well mix the ingredients for the dressing with a fory as well.

Give the dressing to the potatoes and stir through. Set aside for about 1 to 2 hours and stir through occasionally. If necessary add more salt.

Right before serving salt again if necessary and mix in the lettuce