Prep Time 15 minutes mins
Cook Time 45 minutes mins
Total Time 50 minutes mins
Make Ahead: Soup base can be prepared a day ahead and refrigerated. Reheat gently before serving.
Variations: Use chicken broth for a lighter version or add a splash of sherry instead of wine.
Serving Suggestions: Serve with a green salad or crusty bread for a complete meal.
Allergy-Friendly Tips: Use dairy-free cheese and butter alternatives for lactose intolerance.
Storage Tips: Store leftovers in an airtight container for up to 3 days. Reheat on the stove.
Keyword caramelized onion soup, easy onion soup, French onion soup, warm soup