Create a website in the portal for one of the environments; I've called mine http://azurebakery-test.azurewebsites.net/.

Download the publish profile from the website's dashboard, and open it in Visual Studio (you can press Ctrl + E, D to quickly format it).

Unzip the drop package (make sure you unblock it first from the file properties) and copy the MyWebsite_Package folder to a temporary folder to make it easier to deploy.

Locate the following parameter in the MyWebsite.SetParameters.xml file:

<setParameter name="IIS Web Application Name" value="Default Web Site/CustomerWebsite_deploy" />

Change the value to the name of the website created in the portal, like this:

<setParameter name="IIS Web Application Name" value="azurebakery-test" />

Open a Visual Studio command prompt and change the directory to the MyWebsite_Package location (use cd\...