Slow Cooker French Onion Soup

Recipe by Sageca
READY IN: 5hrs




  • Over medium heat sauté the onion in butter until soft and translucent and caramel colour. Make this in 3 batches.
  • Place onions in slow cooker.
  • Deglaze cooking skillet with some of the beef stock;this is the secret to that taste.
  • Add to slow cooker along with the remaining beef broth (your own homemade or powdered mixed with boiling water).
  • Add Worcestershire sauce, thyme and bay leaf.
  • Cover; cook on High for 4 hours or on low for 6-8 hours.
  • Add salt and pepper to taste. Remove bay leaf.
  • Divide soup into appropriate containers.
  • Seal and freeze.
  • When ready to enjoy your French Onion Soup.
  • Remove from freezer and place in a microwave dish with 2 tbsp sherry; heat for 5 minutes.
  • Add Parmesan cheese to your onion soup bowl. Place one slice of toasted bread over the cheese. Fill bowl with soup.
  • Top with shredded Gruyère cheese.
  • Place under broiler to melt your cheese.
  • Tip: When adding your ingredients to the slow cooker make sure they are all hot.
  • Use the processor to slice your onions. I once read 'If I use my food processor just to make onion soup it will be worth the cost".
  • Bon Appettit!