For the onion spread light with apple and bacon, peel and dice the potatoes and boil in salted water until soft. Cut bacon into small cubes and fry in a pan until crispy, drain on kitchen paper.
Cut onion into small cubes and boil briefly in a little salted water, rinse in a colander and drain well.
Cut the apple into small cubes, press the potatoes through a potato ricer or mash them with a fork, mix well with sour cream. Add the remaining ingredients (leave some bacon cubes for garnish) and mix well.
Finally, season the onion spread light.