If you're lucky enough to have an espresso machine, you can make a shot or double shot per usual and proceed. (bonappetit.com)
You can make either single or double shots into each mug. (geekwrapped.com)
I owe Buff and Ann a huge thank you for double shooting the naked lady pillow and gold pillow on every single setup... I just couldn't decide if naked lady was too risque. (erinwilliamsondesign.com)