Step 1: First, add sliced beef liver to a bowl. Pour the buttermilk on top. Soak in the refrigerator for at least 1 hour up to overnight.

Step 2: Once beef has soaked, remove from buttermilk. Pat dry with paper towels. Season on both sides with garlic powder, pepper and sea salt. Discard the buttermilk.

Step 3: In a large skillet, add 1 tablespoon olive oil over medium heat. Add in the sliced onions.

