Knead the meat with tomato paste, pepper, a little salt, a little pepper, possibly a pinch of cinnamon, paprika and garlic in a freezer bag so that everything is covered with spices.
Tie the roasting tube at one end, fill in everything, really everything, add another 2 tablespoons of water, tie the other side as well, pierce a few small holes and slide them into the cold oven on the second rail from below. Set the oven to 120 ° C and cook for 3 hours.
After 3 hours, it doesn`t matter, if it`s 4, it doesn`t matter. The meat just gets softer. Put everything in a bowl, season again with salt and pepper and stir in some cream if you like.