Prepare the Liver: Chop into small pieces. Set aside.
1 cup fresh pork liver
Sauté Aromatics: In a saucepan, heat the oil over medium heat. Add the garlic and onion and sauté until the onion becomes translucent and the garlic is fragrant.
2 tablespoon oil, 5 cloves garlic, 1 small onion
Cook the Liver: Add the liver to the pan and cook for about 5-7 minutes or until fully cooked through. Stir occasionally with a whisk to prevent burning, but do not move it too much so it can sear a little.
Blend the Sauce: Transfer the liver, garlic, and onion mixture to a food processor. Mix the broth with the cornstarch, then pour that into to the food processor. Pulse and blend very well, until smooth.
1 cup pork broth or chicken broth, 1 1/2 tbsp cornstarch
Simmer the Sauce: Pour the blended mixture back into the saucepan. Add the breadcrumbs, vinegar, soy sauce, brown sugar, and black pepper. Stir to combine and bring the mixture to a high simmer for one minute, stirring, then reduce to a gentle simmer over low heat.
3/4 cup breadcrumbs, 1/4 cup cane vinegar, 1/2 tablespoon soy sauce, 4 tablespoons brown sugar, ½ teaspoon ground black pepper
Adjust Thickness and Flavor: Allow the sauce to low simmer for 8-10 minutes, stirring occasionally to prevent it from sticking to the pan. Adjust the consistency by adding more broth or water if it’s too thick. Taste and add salt as needed.
Salt to taste
Strain the Sauce: Once the sauce has reached your desired consistency and flavor, remove it from heat. Strain it through the wire mesh strainer and use the back of the spoon to help push it through into a bowl. Expect lots of pieces to be leftover in order to make a smooth sauce. Repeat if desired. I find two times through the strainer is very nice. Serve: Serve the smooth and freshly made lechon sauce, or store in a glass sauce jar.