Created by dienia b on August 21, 2019
Step 1: Heat 4 tablespoons of the olive oil in a large skillet over medium heat.
Step 2: Add onions and cook, stirring frequently, until soft and deep golden brown, about 20 minutes.
Step 3: Transfer onions with a slotted spoon to a bowl and set aside.
Step 4: Increase heat to medium-high and add remaining 2 tablespoons oil.
Step 5: When oil is smoking hot, add liver and cook in batches to avoid overcrowding the skillet, stirring constantly
Step 6: Until brown and crispy on the edges, 5 minutes.
Step 7: Season liberally with salt and pepper, then add back the reserved onions and accumulated juices. Cook for 2 minutes, stirring and turning liver and onions constantly while shaking skillet over heat
Step 8: Remove back to plate. Add butter and add parsley stirring up bits from skillet. Pour over liver