The recipe calls for 2 cups of UNSALTED butter and 1 teaspoon salt. All I have is salted butter. If I use it, do I leave out all the extra salt?
That will work, I never use anything but salted, it is what we use at the table and I can't see buying both kinds. HTH
Salt varies from 1/4 teaspoon to 3/4 teaspoon for every 4 ounces of salted butter according to which company is producing it ...
It should be fine, the salt cuts down the sweetness and enhances the flavor. I've used both and there really isn't a difference. I've used several brands and I really like the european butter, Plugra. That's just my personal preference.
So I guess I won't add additional salt. Thank you!