How do I upload my zipped lambda code into AWS Lambda?

So I've read through the docs at: https://docs.aws.amazon.com/lambda/latest/dg/lambda-python-how-to-create-deployment-package.html

I've created the zip file, how / where do I actually upload / publish this zip file into AWS?

It's kind of hidden away and not very intuitive.

Within the AWS Lamba admin: Create Function > Author from Scratch.
Within the Code entry type dropdown there is a Upload a .ZIP file option.

StackExchange DevOps Q#3100, answer score: 9