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Slow Cooker Onion Soup

Plain ole Bob

"This is about the best onion soup I've been able to come up with. Tastes better than any restaurant onion soup I've ever had."
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Ingredients

4 h 30 m servings 498 cals
Original recipe yields 3 servings

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Directions

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  • Prep

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  1. Melt butter in a skillet over medium heat; cook and stir sweet onion and red onion in melted butter until softened, about 10 minutes. Cook and stir garlic into onion mixture until fragrant, about 2 minutes. Transfer to a slow cooker.
  2. Pour beef stock, brandy, soy sauce, and Worcestershire sauce into slow cooker. Season with salt and black pepper.
  3. Cook soup on High for 4 to 5 hours.
  4. Preheat the oven's broiler and set the oven rack about 6 inches from the heat source.
  5. Ladle the soup into 3 oven-proof bowls; top with croutons and a slice of Provolone per bowl.
  6. Broil in the preheated oven until cheese melts and begins to brown, about 3 minutes.

Footnotes

  • Partner tip: Try using a Reynolds® slow cooker liner in your slow cooker for easier cleanup.

Nutrition Facts


Per Serving: 498 calories; 29.3 g fat; 30.6 g carbohydrates; 16.8 g protein; 62 mg cholesterol; 1044 mg sodium. Full nutrition

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Reviews

Read all reviews 14
  1. 15 Ratings

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Most helpful positive review

Surprizingly good--even my husband, who is a french onion soup snob, liked it. I was surprized that a french onion soup could be this good from a crockpot. I used a quality brand beef stock, I a...

Most helpful critical review

It was ok. I would suggest to anyone that they put more onion in it--little thin.

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Surprizingly good--even my husband, who is a french onion soup snob, liked it. I was surprized that a french onion soup could be this good from a crockpot. I used a quality brand beef stock, I a...

This was tasty! It was definitely easier than making onion soup the traditional way...I did feel that it was a bit on the thin side, though. I only used sweet onion and more than called for. The...

Very good and rich.

I cooked this on low 8 hours over night, prep it & put it in the crock pot before I went to sleep. Just woke up to this & had to try it. More salt! I added 1/2 a tsp & it still needs more. I ski...

I had this for lunch today. We had made it a few weeks ago and froze it (cheese, croutons, soup). Had I known it would be this amazing, I would have had some way before today!! LOL.... The bes...

My whole family absolutely loved this!! Made exactly as the recipe suggested but left out the brandy simply because I didn't have it in the house. Even my grand-kids loved it and they are pretty...

I followed recipe exactly except with the brandy. I used lemon juice and cider vinegar in place of. Overall it was good, I tad too sweet for me, I think I’d almost skip the cigar vinegar or even...

I altered it to make it vegetarian so instead of beef broth, I used vegetable broth. I also added green onions to the recipe. This was so good. I will make it again.

This was great did as per recipe other then used a mixture of cheese provolone mozella