Trim the silver skin from the pork tenderloin and cut it into medallions. Season generously with salt and pepper, then let it rest for 10 minutes.
Peel all the vegetables and cut them into small, even-sized pieces. Finely chop the onion and garlic.
Heat the oil in a large skillet over medium-high heat. Sear the pork tenderloin medallions on both sides until golden brown. Remove from the skillet and set aside.
In the same skillet, sauté the onion and garlic until softened. Add the carrots, parsnip, and celeriac. Cook for 10-15 minutes, or until the vegetables are tender.
Sprinkle the flour over the vegetables and stir well to combine. Pour in 300 ml of water and cook, stirring constantly, until the sauce has thickened.
Use an immersion blender or transfer the sauce to a regular blender and puree until smooth. Stir in the sour cream, mustard, and lemon juice. Season to taste with salt and pepper.
Return the pork tenderloin to the sauce and simmer over low heat for another 10-15 minutes, allowing the flavors to meld.
Serve the pork tenderloin in hunter's sauce with boiled bread dumplings or mashed potatoes. Garnish with fresh parsley.
To provide the best experiences, we and our partners use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us and our partners to process personal data such as browsing behavior or unique IDs on this site and show (non-) personalized ads. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Click below to consent to the above or make granular choices. Your choices will be applied to this site only. You can change your settings at any time, including withdrawing your consent, by using the toggles on the Cookie Policy, or by clicking on the manage consent button at the bottom of the screen.