Ingredients
Equipment
Method
- Thinly slice the yellow onions and the calves liver; ensure liver is patted dry.
- In a shallow dish, whisk together the flour with salt, pepper, paprika, and dry mustard to taste.
- Heat the bacon fat in a large frying pan or skillet over medium heat.
- Add the sliced onions to the hot fat and cook slowly, stirring occasionally, until deeply caramelized and tender, about 15-20 minutes. Remove onions from the pan and set aside.
- Lightly dredge each slice of liver in the seasoned flour, shaking off any excess.
- Increase the heat to medium-high and add more bacon fat if needed. Sear the floured liver slices for 2-3 minutes per side, or until a nice crust forms and the interior is slightly pink (do not overcook).
- Return the caramelized onions to the pan with the cooked liver and gently toss to combine and warm through.
- Serve immediately, garnished if desired.
Notes
The key to tender liver and onions lies in two things: selecting young calves or veal liver, and not overcooking it. Liver, especially thin slices, cooks very quickly. A light golden-brown crust with a slightly pink interior ensures maximum tenderness and flavor. Overcooked liver becomes tough and grainy. When caramelizing onions, a lower heat and patience will yield a sweeter, more developed flavor. Don't rush this step. The bacon fat adds a crucial depth of smoky, savory flavor that complements the richness of the liver and the sweetness of the onions. Consider deglazing the pan with a splash of sherry or beef broth after cooking the liver to create a simple, flavorful pan sauce.