"A traditional classic dish from the Veneto region...."
INGREDIENTS
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4 Tablespoons Extra-virgin Olive Oil 4 Tablespoons Unsalted Butter 4 Red Onions, Very Thinly Sliced Salt 1 Pound Calves Liver, Thinly Sliced 2 Eggs 1 1/2 Cups Breadcrumbs To Serve: Aged Balsamic Vinegar