White, yellow and red onions have higher concentrations of the enzyme needed to produce the volatile compound while sweet onions, green onions ... keeping the root intact, placing a fan next ...
Trim about 1/4 inch from the root end and about 1 inch from the stem end of each onion. Peel onions, and remove outermost onion layer. Scoop out flesh from center of each onion using a small spoon ...
Here are the differences between green onions or scallions (left) and chives (right). / Westend61/Getty Images There seems to be much confusion surrounding scallions, chives, and green onions.