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High Protein Beef Liver and Onions

Traditional beef liver and onions prepared with milk soaking and quick searing for tender, flavorful, nutrient-dense results.
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Prep Time 15 minutes
Cook Time 15 minutes
Total Time 30 minutes
Servings: 4 servings
Course: Dinner, Main Course
Cuisine: American, Traditional
Calories: 320
Ingredients Equipment Method Notes

Ingredients
  

  • 1 lb beef liver sliced into thin strips
  • 2 large yellow onions thinly sliced
  • 1 cup milk for soaking
  • 1/2 cup all-purpose flour
  • 2 tbsp butter
  • 2 tbsp vegetable oil
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1/2 tsp garlic powder

Equipment

  • large skillet
  • mixing bowl
  • Shallow dish for dredging
  • paper towels
  • Tongs or spatula

Method
 

  1. Place liver slices in a bowl and cover completely with milk. Let soak for 15-30 minutes. This removes bitter, metallic taste and tenderizes the liver.
  2. While liver soaks, heat 1 tablespoon butter and 1 tablespoon oil in a large skillet over medium heat. Add sliced onions and sauté until soft, caramelized, and golden brown, about 10 minutes. Remove onions and set aside.
  3. In a shallow dish, mix flour, salt, pepper, and garlic powder. Drain milk from liver and pat slices completely dry with paper towels.
  4. Dredge each liver slice in flour mixture, shaking off excess.
  5. In the same skillet, add remaining butter and oil. Increase heat to medium-high. Add liver slices in a single layer, working in batches if necessary. Cook 2-3 minutes per side until browned. Do not overcook or liver will become tough.
  6. Add caramelized onions back to skillet with liver. Toss gently for 1 minute to heat through and combine flavors.
  7. Serve immediately while hot.

Notes

Storage: Best served fresh. Can refrigerate for up to 2 days. Reheat gently in a pan over medium-low heat with splash of broth to prevent toughening. Variations: Use almond flour or gluten-free flour blend for gluten-free version. Add bacon to onions for smoky flavor. Try chicken liver with same technique but reduce cooking time to 1 minute per side. Add sliced mushrooms when cooking onions for extra depth. Finish with fresh parsley or chives. Nutritional Benefits: Beef liver is exceptionally high in Vitamin A, B12, iron, and complete protein. One of the most nutrient-dense foods available. Pro Tips: Slice liver while slightly frozen for easier, more uniform cuts. Never overcook—liver should be slightly pink in center for best texture. Milk soaking is essential for removing bitterness. Pat liver very dry before dredging to ensure proper browning.