What is the correct way to add business expense reciepts in QB?

Making these assumptions: your a sole prop or maybe LLC...you don't want to keep track or reconcile your cash accounts in QB..your business check card and checking are the same account.Try this:

Separate the expenses by method of payment before you start entering-Business Checking and Personal Funds. QB will reorder by date so don't worry about putting in order or anything

• Use "Check Register" if you have a lot of receipts to enter, although "Write Checks" accomplishes the same thing in a more visual manner.
• Choose Checking Account in next window.
• Check the box in lower left that says 1-Line, this speeds up entry.
• Start by entering date and check number or E, EFT, DB or something similar if check card was used. 
• Enter a vendor name, "Name Not Found" screen will pop up. The "Quick Add" button should be highlighted so just hit enter or click it.
• "Vendor" should be selected on the next screen, so hit enter again to okay or click it. That's it, they have been added. If you want to keep address info, go to vendor center and edit later.
• Enter the expense account and the payment amount, hit enter to go to next line.

For expenses paid with personal funds: 

• Create new Equity type account called Owner's/Member's Investment. Go to Lists>Chart of Accounts, lower left, click on Account button, then new
• Double click on the newly created account to open it, check mark the 1-Line box
• This works like the check register- enter date, number, vendor, expense acct, and the amounts in the "Increase" column.

This should get you started down the right path,  your accountant should be able to provide assistance if you want to track accurate checking account balances, will pay yourself back for personal funds, paid 1099 vendors or want to further utilize QB for your business needs.  Or search the community.

Hope this help, please mark as solved if I have answered your question or ask another. Thanks!