How to Cook Liver and Onions: A Simple Guide

Liver and onions is a classic dish that is enjoyed by many people around the world. While it may seem intimidating to cook at first, it is actually a fairly simple and straightforward dish to make. This article will provide you with a step-by-step guide on how to cook liver and onions, along with some useful tips and tricks to help you achieve the perfect dish.


Before we get into the cooking process, let’s take a look at the ingredients you will need to make liver and onions:

  • 1 pound of liver (beef, chicken or pork)
  • 1 large onion or 2 medium onions, sliced
  • 1/2 cup of flour
  • 1/2 teaspoon of salt
  • 1/4 teaspoon of black pepper
  • 2 tablespoons of oil (olive, vegetable or canola)
  • 2 tablespoons of butter(optional)

Step-by-Step Guide

Now that we have our ingredients ready, let’s start cooking!

Step 1: Clean and Soak the Liver

The first step is to clean the liver thoroughly. Rinse it with cold water and remove any fat, veins or membranes that may be present. After cleaning, soak the liver in milk or water for about an hour to remove any bitter taste. This is an important step as it helps to tenderize the meat and mellow out the strong flavor.

Step 2: Season the Liver

Remove the liver from the milk or water and pat it dry with a paper towel. Season both sides of the liver with salt and pepper or your preferred spices. You can also sprinkle some flour on the liver to help it brown and thicken the sauce later.

Step 3: Slice and Fry the Onions

Heat a large skillet over medium-high heat, and add two tablespoons of oil (or butter if you prefer). Once hot, add the sliced onions and cook until they are caramelized and tender, stirring occasionally. This should take about 10-15 minutes. Once done, remove the onions from the pan and set them aside.

Step 4: Cook the Liver

In the same skillet over medium-high heat, add a tablespoon of oil or butter if you prefer. When the oil is hot, add the liver to the skillet and cook for about three to five minutes on each side, or until browned and cooked through. Be careful not to overcook the liver as it can become tough and rubbery.

Step 5: Serve and Enjoy!

Once the liver is cooked, arrange it on a plate and top it with the caramelized onions. You can also sprinkle some fresh herbs or chopped parsley on top for added flavor and presentation. Serve hot and enjoy!

Useful Tips and Tricks

– When cleaning the liver, make sure to remove any visible fat, veins or membranes as they can make the liver tough and chewy.

– Soaking the liver in milk or water for an hour can help to reduce the strong flavor and make it more tender.

– When cooking the onions, make sure to caramelize them to bring out their sweetness and flavor.

– Be careful not to overcook the liver as it can become tough and rubbery. Cook it until it is browned on both sides and cooked through.

– You can also add other ingredients such as mushrooms or bacon to enhance the flavor of the dish.


What type of liver should I use?

You can use beef, chicken or pork liver for this recipe. However, beef liver is the most commonly used and has a strong flavor that pairs well with onions.

How do I know when the liver is cooked?

The liver should be cooked until it is browned on both sides and cooked through. It should not be pink or rubbery. You can also use a meat thermometer to check the internal temperature should be 160°F (71°C).

Can I freeze liver and onions?

Yes, you can freeze liver and onions for up to three months. To freeze, cool the dish completely and store it in an airtight container or freezer bags. Thaw it in the refrigerator overnight before reheating.