Foreign income tax paid on US income: how to get credit

I am a new tax resident of Portugal and pay Portuguese tax on parts on my US income. It's all passive income: Social Security, annuity, interest, dividends, and capital gains. I have no Portuguese income. How do I claim a tax credit? I have gone down numerous rabbit holes in TurboTax Deluxe. I know for 1116 is key, but how do I invoke it? Thanks.