Trim off the fat and cut the heart into pieces. Cook for 2 hours, adding salt at the end of cooking. This is a superfood, a vitamin bomb, the heart contains several times more B vitamins than beef, one and a half times more iron and many essential microelements.
I love it with sauerkraut. When I eat a lot of heart or beef or 0.7-1 kg of poultry, the next day I feel a surge of strength in my muscles (my weight is 115 kg). Without a large amount of meat (every 3-4) days, my body feels uncomfortable.