Cutting onions for French onion soup is a crucial step in creating this classic dish. Thinly sliced onions caramelize slowly, releasing their natural sweetness and adding a rich, flavorful base to the soup. Properly cut onions will cook evenly, ensuring a consistent texture and preventing them from becoming mushy.
To cut onions for French onion soup, start by removing the root end and peeling the onion. Slice the onion in half from top to bottom, then lay one half flat-side down on a cutting board. Make thin, even slices across the onion, about 1/8-inch thick. Repeat with the other half of the onion. The thinly sliced onions are now ready to be caramelized and added to the soup.
