Fire and forget?

I have a Rest Asp.net Web API server running.
From my web form asp.net app, I need to consume one of them.
So in the button click event, I called following method...

private async Task FireAndForget() {
              using (HttpClient httpClient = new HttpClient())               {
                       blahblah..
                       httpClient.PostAsync(WebAPIUrl, content)
              }
             blahblah..my different logic processing...blahblah..
}
Since I don't really need to wait for any returning ...