Let the venison stew marinate overnight in the wine in a large bowl in the refrigerator.
Drain into another bowl and catch the wine; this will be needed for the sauce later. Let the meat drain well and pat dry with paper towels if necessary. Ensure that the meat comes to room temperature.
Set your Cookeo to manual mode and choose the 'intensive browning' function.
Brown the pieces of meat nicely in some butter, in batches. Set aside.
Add a knob of butter and sauté the finely chopped onion, celery, and carrot. Add thyme, bay leaf, grated garlic, and tomato paste. Let it sauté well.
Add the flour and mix well until it is no longer visible. Stir in the game stock and the wine from the marinade. Crush the juniper berries and black pepper together with the salt in a mortar, add them, along with the berry jelly and the browned meat. Season with pepper and salt, select the 'high pressure' function, and set for 40 minutes. Then let it simmer without pressure until the sauce reaches the desired thickness.
Meanwhile, prepare your pumpkin puree. Peel and cut the potatoes and pumpkin into equal pieces. Steam them together until soft, then mash them with a potato masher. Whip in the warm milk, butter, and seasonings. Taste and adjust seasoning if necessary. Keep warm.
Prepare the roasted cranberries.
Serve in deep plates, garnished with sprigs of dill. Place the remaining stew, puree, and cranberries in warm beautiful dishes on the table. Enjoy!