Peel the celery root and cut into pieces of 3 to 4 cm.
Finely chop the garlic and onion, mix everything with pepper and salt and oil together, and place on a baking sheet lined with parchment paper.
Roast for 30 minutes at 180°C until the celery root is tender.
Blend with the broth and the knob of butter. Grate the zest over it.
Put all the ingredients for the sauce in a saucepan and bring to a boil.
If you want a thicker sauce, you can thicken it with some cornstarch.
Make incisions in the fatty edge of the duck breast fillets and place them in a warm pan.
The fat will start to melt. Let them sit for 2 to 3 minutes on the fatty side to cook further. The pan should not be too hot, otherwise, it will burn quickly.
Then turn the duck breasts over onto the meat side and cook for another 2 minutes. Then place them on a paper towel and let rest for 5 minutes before slicing. Keep them warm in the oven at 40°C.
Slice the meat and serve with the sauce and the puree.
Tips
No extra tips needed, Just Enjoy!