Beef liver is one of the most nutrient-dense foods on the planet, but does it actually taste good? In this experiment, we test two cooking methods—pan-fried and sous vide—to see if liver can be made ...

Liver and kidneys are probably the most widely available offal and are as simple to cook as a steak, but far less expensive. For a milder tasting offal, look for heart, sweetbreads or tripe.