INGREDIENTS
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1/2 cup panko bread crumbs
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1/4 cup whole milk
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1 pound ground beef
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1 pound ground pork
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1 onion, finely chopped
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1/2 stick butter, softened
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2 large eggs
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1/2 cup chopped parsley leaves
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Kosher salt
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Freshly ground black pepper
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Olive oil, for frying