Perhaps it would be best to keep it, after all; it may serve no clear function, but it it's indicated in the procedure, it must be necessary.
[after this very techpriestly statement, she moves over to where the ingredients, mixing bowl, and measuring cups are (a.k.a. wherever Gaunt left them after his first botched attempt), and starts organizing them by their order in the recipe, squinting at some of the packages to make sure of what they contain.]
I think that's right. All of these white powdered things look the same to me. Now, the first step.
[she mutters what she remembers the recipe saying under her breath, then tips some powdered something into a measuring cup, dumping it into the bowl and moving on to the next powdered something, repeating the process. She takes an egg from the open carton on the counter and holds it out in Gaunt's direction]
Here; eggs have got to go in, too. You start that, and I'll do this next bit.