Prepare all your ingredients (because cooking the liver will go quickly).
Heat the pan over high heat and add the lard or oil. Once the pan is hot, transfer the liver to the pan with the parsley. Let it cook for 2 to 3 minutes. Flip on the other side and let it cook for 1 minute.
Put the liver aside on a plate. Add the blueberries and apple cider vinegar to the pan. Let them cook for 2 minutes before adding the liver back to the pan to finish cooking it (1-2 minutes or more, depending on how you like it to be done).
Transfer to a plate and voilà! Serve immediately with vegetables.Bon appétit !
Notes
Please keep in mind that the nutritional information is calculated using a nutrition facts calculator. It is a rough estimate and can vary greatly based on products used.