Easy Slow Cooker French Onion Soup Recipe

This French onion soup recipe is old enough that it came from a full service gas station.  They use to wash your windows, fill your gas tank, and even check the oil and windshield washer levels for free while you were grabbing gasoline.  I was pretty little but the gas stations had various competing give aways for fill ups.  My brother would take me with him to grab his gas and I could choose a package of  free recipe cards with every fill up.  This recipe came from one of those cards.  I felt like a grown up whenever I made this.  So fancy I thought, it has lots of fond memories for me. 

Over the years I created a slow cooker version with the same ingredients.  Now you don’t need to saute the onion for hours, all we just pop the onions into a slow cooker.  Comfort food without the work.  I hope you give it a try.

Classic French Onion Soup Recipe Ingredients

Instructions for Traditional French Onion Soup

Turn slow cooker on high, add butter.

Slice your onion into circles.

To avoid watery eyes, my trick is to do each onion one at a time.  Cut off the ends of the onion, remove the skin.  Toss the skins away from your work area.  Rinse the onion under cold water. 

Cut the onion in 1/4 inch slices, keeping the slices stacked.  Cover the onion with a clean tea towel, a wet paper towel.  Start with the next onion. 

This may not totally prevent your eyes from watering, some onions are just plain mean, but I do promise it will help drastically.

Take your onions one at a time and push out the centers to create circles.  I do it directly over the slow cooker.

Turn the slow cooker onto low and let the onions cook for 6 to 8 hours.  The will become sweet and translucent.

Once home from the end of the day, add the beef broth, and cognac.  Simmer for half an hour.

Slice your french bread at least 1/2 inch thick and trim to fit your bowls.

Add 2 tbsp of butter and a minced clove of garlic to a small bowl, and mix.  Butter the french bread and place under the broiler until toasted.

Grate the cheeses. 

Just before serving, ladle the french onion soup into oven proof bowls.

Float a piece of french bread on top of each bowl of soup.  Sprinkle with both cheeses.

Place into a large pan to transfer to the oven.  Place under the broiler until melted and golden.  It only takes about 3 minutes.

Remove from oven and serve.    Caution everyone that both the soup and bowls are hot.

Here is another easy soup recipe my family really enjoys.  I love this recipe as it is so quick to make.

Slow Cooker Chicken Noodle Chowder

Slow Cooker Classic French Onion Soup like Mom Use to Make

Print Recipe

Prep Time:15 minutes mins

Cook Time:6 hours hrs

Total Time:13 hours hrs 15 minutes mins

Ingredients

• 4-5 medium sized onions
• ¼ cup butter please don’t substitute
• 5 cups beef broth canned or boxed is fine
• 2 tbsp cognac substitute for brandy, red wine, or 1 tbsp red wine vinegar
• 2 tbsp butter
• 1n clove garlic minced
• 4 thick slices french bread
• 1 cup mozzarella cheese
• ½ cup fresh grated parmesan cheese
• salt and pepper to taste

Instructions

• Turn slow cooker on high, add butter.
• Slice your onion into 1/4 inch sliced circles. Take your onions one at a time and push out the centers to create circles.  .
• Turn the slow cooker onto low and let the onions cook for 6 to 8 hours.  The will become sweet and translucent.
• Add the broth and cognac, simmer for half an hour.
• Slice your french bread at least 1/2 inch thick. Trim so it fits your bowls.
• Add 2 tbsp of butter and a minced clove of garlic to a small bowl, and mix. 
• Butter the french bread and place under the broiler until toasted.
• Grate the cheeses. 
• Just before serving, ladle the french onion soup into oven proof bowls.
• Float a piece of french bread on top of each bowl of soup.  Sprinkle with both cheeses.
• Place onto a large pan to transfer to the oven.  Place under the broiler until the cheese melts and turns golden. It only takes about 3 minutes.  Remove from oven and serve.  Grate the cheeses.  Just before serving, ladle the french onion soup into oven proof bowls. Float a piece of french bread on top of each bowl of soup.  Sprinkle with both cheeses.

Servings: 4 people