Easy French Onion Soup With Beef Broth (Crockpot/Slow Cooker Recipe)

Since the time my daughter was little, I have mastered this French onion soup with beef broth recipe. She used to absolutely hated it. However, she began to like it as she grew older. This soup is a classic that can be customized according to your preferences. Since she is now vegan, I swap out vegetable broth for the beef broth, and I added mushrooms. For a full meal, try adding thinly sliced beef. Or try different onions, like shallots or red onions for a more mild taste.

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