Mustard Liver

Calf liver is one of those ingredients cooks either love or avoid, and this British preparation is designed to win over skeptics. A quick initial broil sets the outside, then a topping of minced garlic, onion, parsley, prepared mustard, and buttered breadcrumbs goes on for a second broil until the crust turns deep golden.

That sharp mustard is the key. Liver has a characteristically strong iron-rich flavor that pairs beautifully with acid and pungency, and mustard cuts through the richness while the crisp crumbs give textural contrast to the soft meat underneath.

Chef Tips

• Use calf liver, not beef. Calf liver is dramatically more tender and has a milder flavor than older beef liver, and this recipe depends on that tenderness.
• Soak the liver in milk for 30 minutes before cooking if you find liver too strong. This classic trick draws out some of the blood and softens the iron-forward flavor without removing it entirely.
• Do not overcook the first broil. A minute per side is enough. The second broil with the topping finishes the center, and overcooked liver turns gritty and dry.
• Use a coarse grainy or English mustard for more pronounced flavor. Yellow American mustard works but the dish reads more interesting with Dijon or whole grain.

Variations

• Add crumbled crisp bacon to the topping for a meatier, smokier crust.
• Swap half the breadcrumbs for finely grated parmesan for a richer, saltier crust.
• Finish with a splash of sherry or red wine vinegar over the plate for extra brightness against the rich liver.