Comment by grues-dinner

No need to cakesplain, that was an example with three ingredients of the top of my head, very, very obviously the exact ingredients and bracket assignments vary depending on what you are making.

But for shortbread or fork biscuits those three could indeed all go in the bowl in one go (but that one admittedly doesn't really need a bracket because the recipe is "put in bowl, mix with hands, bake").