It's not clear whether you are an employee or self-employed.
If you are an employee, in the Search box type "foreign income" (without the quotes), then click the link that says "Jump to foreign income." When TurboTax asks what form the foreign income was reported on, select "A statement from my foreign employer (could be cash)."
If you are self-employed, enter the income as business income, as DononGA described. Then, to claim the foreign earned income exclusion, follow the instructions above for an employee, but select "A Form 1099-MISC or other self-employment income" and enter the same income that you already entered as business income.
