What is the exact meaning of the phrase 'sift together'? If I need to 'sift together' flour, baking power, baking soda, and salt, does that mean put each one into the sifter sequentially, operating the sifter until is is empty before adding the next one?
Or maybe I'm supposed to dump all these things into the sifter at once and then sift until it's empty? Perhaps I should dump all the ingredients into a bowl, mix them with a spoon, then sift the resulting mixture?
Bonus points if you can tell me if I still need to stir ingredients which I have 'sifted together' in order to mix them. Thank you!