Do you know all 8 of these essential onion tricks? Gourmandize Staff, 07/10/2017 Gourmandize shares Share on Facebook Share on Twitter Pin it Share on WhatsApp Share on Google+ 7/8 Previous Next ESSENTIAL ONION TRICKS Putting dry onion in a sack of flour will give the buns, bread and salted tarts that you prepare with the flour a lot more flavor.