This Easy French Onion Soup is rich, comforting and so good with toasted cheesy bread for dipping! What better way to kick off Season 4 of Ali in the Valley than with a delicious decadent classic French Onion Soup. French Onion Soup is such a classic and SO easy to make! Onions are slowly caramelized until soft and sweet, simmered with beef broth, and just a touch of sugar. It’s topped with crispy croutons, loads of shredded gruyere cheese, and broiled into crispy, cheesy oblivion. So good!