Finely dice the onions and finely chop the garlic. Cut the kohlrabi into 1 cm cubes and the fennel into strips. Cut the fish into approx. 3 cm cubes.
Sear the onion with the garlic and bacon in olive oil until the onions are browned. Add the kohlrabi and fennel and season with salt, pepper and nutmeg. Fry everything again over high heat, stirring constantly.
Pour in the wine and simmer over medium heat for about 10 minutes. Add the fish and pour on the cream. Increase the temperature and let the sauce boil down for approx. 5 minutes.
Finally, add a pinch of cinnamon to taste.
Serve with fried potato wedges and serve with a strong Chardonnay.