How to create an additional payroll check for an hourly employee paid using a time sheet paid the correct hours but underpaid the hourly rate.

I'd be pleased to help you create additional payroll for an hourly employee, pernst.

We can use the Unscheduled Payroll to create an additional paycheck for your hourly employee. Below are the steps to complete the process:

1. Click on Employees at the top menu bar and choose Payroll Center.
2. In the Pay Employees section, select Start Unscheduled Payroll.
   
3. Select the employee's name, then select the Open Paycheck Detail button.
4. Enter the necessary payroll details.
5. Hit Save and Close.

We can refer to the following article for more details about this process: Create and run your payroll. 

Additionally, we can scan through the following resources below. These will provide us with more details about creating a payroll schedule as well as other payroll-related links for our future tasks:

Set up and manage payroll schedules.

Get started with QuickBooks Desktop Payroll.

Let me know if you need anything else, pernst. I'm always here to keep helping and provide additional assistance.