Liver & Onions Recipe

Prepare the liver

Remove the liver from packaging, rinse briefly under cold water, and pat dry with paper towels. Trim away any visible membranes, veins, or connective tissue. Slice the liver crosswise into 1/4- to 1/2-inch thick slices (about 8–10 slices from 1 lb).

Soak (optional, to mellow flavor)

If desired to reduce strong flavor, place liver slices in a bowl and cover with milk or cold water for 20–30 minutes, then drain and pat dry thoroughly. (If you used this step, reduce final seasoning by a pinch if milk adds salt.)

Prepare the onions

Peel and halve the onions, then slice into 1/4-inch thin rounds or half-moons. Separate slices into rings and set aside.

Season and flour the liver

In a shallow bowl or plate, combine the flour, kosher salt, black pepper, and garlic powder. Dredge each liver slice in the seasoned flour, shaking off excess. Place dredged slices on a rack or plate in a single layer.

Caramelize the onions

Heat 1 tablespoon neutral oil and 1 tablespoon butter in a large skillet over medium heat until butter foams. Add the sliced onions and a pinch of salt. Cook, stirring occasionally, 12–18 minutes until soft and golden brown. If onions begin to brown too quickly, reduce heat to medium-low. When onions are deeply softened and caramelized, transfer them to a plate and keep warm.

Pan-fry the liver

Wipe the skillet lightly if there are heavy browned bits that might burn; add remaining 1 tablespoon oil and 1 tablespoon butter and heat over medium-high until shimmering. Add liver slices in a single layer without overcrowding (cook in batches if necessary). Fry 1.5–2 minutes per side for medium-rare (interior slightly pink) or 3 minutes per side for well done. Avoid overcooking — liver becomes tough when overcooked. Do not move slices constantly; let a brown crust form before flipping.

Make a quick pan sauce

After removing cooked liver to a warm plate, lower heat to medium. Add the reserved caramelized onions back into the skillet. Pour in the stock and apple cider vinegar (or lemon juice) and use a wooden spoon to loosen any browned bits from the pan. Let the sauce simmer 1–2 minutes to reduce slightly and meld flavors. Taste and adjust seasoning with salt and pepper if needed.

Finish and serve

Return liver briefly to the pan (30 seconds) to warm through in the sauce, then transfer liver to a serving platter and spoon onions and pan sauce over the top. Sprinkle chopped parsley if using. Serve immediately.