Beef fillet with mushroom filling

Beef fillet with mushroom filling

Total: 2 hr 20 Min. | Active: 50 Min.
Nutritional value / person: 646 kcal
, Fat: 35 g
, Carbohydrate: 26 g
, Protein: 50 g


4 people


Please note: If you adjust the quantities yourself, it may happen that the recipe is not perfect. The quantities and cooking times of the ingredients are not automatically adjusted in the text. If you have any questions about the quantities in this recipe, the culinary professionals at Betty Bossi will be happy to help you:

Betty Bossi Koch-Center

To prepare the fillet

800 g beef fillet, unsliced (centre section)


200 g mixed mushrooms
2 small onions (approx. 50 g)
1 garlic clove
1 sprig sage
1 tbsp olive oil
2 tbsp cognac
¼ tsp salt

To brown the meat

1 tbsp olive oil
¾ tsp salt
a little pepper

Celeriac & pear puree

400 g mealy potatoes
300 g celeriac
2 pears
50 g butter
1 tsp salt
a little pepper


2 tbsp cognac
2 dl single cream for sauces
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How it's done

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To prepare the fillet

Remove the meat from the fridge approx. 1 hr. prior to cooking. Preheat the oven to 80°C, warm the platter and plates.


Roughly chop the mushrooms, slice the onions. Finely chop the garlic and sage. Heat the oil in a frying pan. Fry the mushrooms for approx. 10 mins. until all of the liquid has evaporated. Reduce the heat. Add the onions, garlic and sage, cover and sauté for approx. 10 mins. Add the cognac, reduce completely, season with salt. Leave the filling to cool.

Cut lengthwise into the middle of the meat using a long, thin knife, work the knife back and forth a few times until the incision is approx. 4 cm wide. Use the end of a wooden spoon to make the pocket bigger if necessary. Stuff the filling into the pocket using the spoon.

To brown the meat

Heat the oil in a frying pan. Season the meat, brown all over for approx. 5 mins., only turning when a crust has formed, remove. Place the meat on the warmed platter. Put the pan to one side.

To cook

Approx. 1 1/4 hrs. in the centre of a preheated oven.

Celeriac & pear puree

Peel the potatoes and celeriac, cut into pieces. Peel and core the pears, cut into pieces. Place a steamer basket in a wide pan, fill with water to just below the bottom of the basket. Add the vegetables and pears, cover and cook for approx. 30 mins. until soft.

Remove the steamer basket containing the vegetables and pears, pass the vegetables and pears through a food mill and back into the pan. Stir in the butter, season. Cover and keep warm.


Pour the cognac into the frying pan, loosen any bits that have stuck to the bottom, reduce almost completely. Pour in the single cream, simmer for approx. 2 mins. Carve the meat across the grain and serve with the celeriac & pear puree and the cream sauce.

Good to know
Serve with: Glazed carrots and salad

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