Why didn't you just use a new plug while you were at it instead of re-using that old dinosaur?

What's that white stuff I see around the pins. Corrosion?

Also, what does that black female connector look like from the front, by the way?

Makes it look like an extension cord - all the kettle connectors I've seen are flat plastic, some with two grounding strips on the flat edges to scrape against the metal casing of the appliance inlet.