I came across this handy little tip when making this sponge cake. How to measure flour when the recipe is written in cups rather than grams or ounces.
Place measuring cup on a sheet of kitchen paper.
Sift flour into cup till overflowing. Do not bang cup on table to settle flour.
With back edge of knife scrape across rim of cup to remove excess flour.
I have found this method more successful than scooping flour out of flour bin or spooning flour into measuring cup.
