Hot To Slice Onions For French Onion Soup

Note that the chef uses two different sizes of chef knives. The 5″ for peeling the onions and cleaning up the ends and the 8″ for cutting the onions into thin slices. The bit about using a slicing motion and not a chopping motion is worth mentioning. I think a Santoku blade is better suited for onions because the cutting edge is more acute and the shape of the blade is better suited for the slicing motion necessary for really thin onion slices.