Kyiv-Style Roast: Beef, Potatoes, and Mushroom-Cream Bake

Fry whole small potatoes until golden, then transfer them to a portion-sized baking dish. On top, place two partially fried pieces of beef tenderloin, boiled, finely chopped mushrooms, onions sautéed with tomato paste, and chopped herbs. Season with salt and pepper, pour in sour cream (a thicker, tangier style of sour cream common in Eastern Europe) and mushroom broth, then put the dish in the oven.

Ingredients:
– Beef tenderloin: 1200 g (approx. 2.6 lbs)
– Fat: 70 g (approx. 2.5 oz)
– Potatoes: 2 kg (approx. 4.4 lbs)
– Dried mushrooms: 100 g (approx. 3.5 oz)
– Onion: 300 g (approx. 10.6 oz)
– Tomato paste: 150 g (approx. 5.3 oz)
– Sour cream: 500 g (approx. 17.6 oz)
– Black pepper: 1 g (approx. 0.035 oz)
– Herbs: 20 g (approx. 0.7 oz)