Peel and chop the potatoes and cook in salted water until soft. Drain the water and strain the potatoes through a sieve or press them through a potato press.
Add the stock, vinegar and oil, stir everything well. Season to taste with salt and pepper.
The potato dressing then comes lukewarm over the lamb`s lettuce. Crispy fried bacon cubes on top - a fine, addicting starter is ready!