Pour soy sauce into a bowl, squeeze the garlic, add thyme, salt and ground pepper to taste. Mix the marinade, dip the steaks on all sides and leave in the marinade. Cover with cling film, let the meat brew for 2 hours. Put the steak on the foil, tightly wrap. Put the steaks on a baking sheet and bake at a temperature of 180 degrees for about 40 minutes. Baked lamb steak served hot. Enjoy your meal!