INGREDIENTS
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2 pounds potatoes, such as russet, peeled and cubed
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2 tablespoons sour cream or softened cream cheese
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1 large egg yolk
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1/2 cup cream
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Salt and freshly ground black pepper
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1 tablespoon extra-virgin olive oil1 3/4 pounds ground beef
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2 carrots, peeled and chopped
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1 onion, chopped
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2 tablespoons butter
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2 tablespoons all-purpose flour
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1 cup beef stock or broth
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1 tablespoon tomato paste
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1/2 to 3/4 cup ketchup
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2 teaspoons Worcestershire, eyeball it
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1/2 cup frozen peas
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1/2 cup frozen corn
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1 teaspoon sweet paprika
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2 tablespoons chopped fresh parsley leaves