French onion soup sounds like one of those time consuming, only eat it in restaurants kind of dish. Nothing could be further from the truth. French onion soup is really easy to make and one of my favorite homemade winter day treats. So break out the slow cooker and get started.
Slow Cooker French Onion Soup
- 3 tbsp butter
- 2 tbsp coconut oil
- 5 large onions, sliced thinly and separated
- 1 tsp sugar, divided
- 3 ½ pints beef broth
- 4 tbsp ruby port
- 2 tbsp Worcestershire sauce
- ½ tsp fresh ground black pepper
- ¼ tsp salt
- 1 cup of your favorite melting cheese (provolone and/or mozzarella cheese, swiss, gruyere) grated
- 6-8 slices sourdough bread, lightly toasted – I like to use a full baguette from the bakery
Heat the butter in the slow cooker until melted.
Add the onions, cover and cook, on low, until the onions are soft and just beginning to brown.
Next I add the port, beef or vegetable stock, Worcestershire sauce, salt and pepper. Cover and cook on low for 5 hours.
Divide the soup into individual oven-proof bowls and place the bread slices to cover evenly. Sprinkle with the grated cheese and put under the broiler about 6-inches from the heat until the cheese is melted and lightly browned, about 2-3 minutes.