In a pot filled with salted water, boil the Jerusalem artichokes until tender.
2 handfuls Jerusalem artichokes
Cut them in half and set them aside to cool.
In a large bowl, mix the lettuce with the finely sliced radicchio and parsley.
1 radicchio, 3 small butter or Boston lettuces, 1 handful fresh parsley
Add some cooking fat in a skillet and place over a medium heat to fry the bacon pieces, until lightly brown.
Cooking fat, 8 slices good quality bacon
Add the onions and cooked Jerusalem artichoke halves to the skillet with the bacon and fry everything until the bacon and Jerusalem artichokes are nice and crispy.
1 small onion
While the hot ingredients are cooking, mix the balsamic vinegar with the olive oil in a small bowl, season with salt and pepper and pour in the bowl with the lettuce and radicchio, combining everything with your hands.
3 tablespoon balsamic vinegar, Extra-virgin olive oil
Serve the hot bacon, Jerusalem artichokes and onion on plates topped with a portion of the lettuce and radicchio.
Sea salt and freshly ground black pepper to taste
Eat immediately while still hot.