For a vegetarian option, substitute vegetable broth for beef stock. A splash of dry sherry can be used in place of brandy. For a more intense onion flavor, caramelize the onions for a longer period, watching carefully to prevent burning. If you don't have oven-safe bowls, you can melt the cheese on the crouton-topped soup in a skillet under the broiler.
Slow Cooker Onion Soup
-
PREP TIME15 mins
-
COOK TIME4 hrs 15 mins
-
TOTAL TIME4 hrs 30 mins
-
SERVING3 People
-
VIEWS63
Imagine rich, deeply caramelized onions melding with savory beef broth, all infused with a hint of brandy. This slow cooker onion soup transcends the ordinary, delivering a restaurant-quality experience in the comfort of your own home.
Ingridients
Adjust Servings
Nutrition
-
Carbohydrate31 g
-
Cholesterol62 mg
-
Fiber3 g
-
Protein17 g
-
Saturated Fat16 g
-
Sodium1044 mg
-
Sugar9 g
-
Fat29 g
-
Unsaturated Fat0 g
DIRECTIONS
Salamander lied porpoise much over tightly circa horse taped so innocuously side crudey mightily rigorous plot life. New homes in particular are subject. All recipes created with FoodiePress have suport for Micoformats and Schema.org is a collaboration byo improve convallis.
01 Step
Recipe View 11 mins Melt butter in a skillet over medium heat. Add the sliced sweet onion and red onion and cook, stirring occasionally, until softened and caramelized, about 10-12 minutes.
02 Step
Recipe View 2 mins Add the minced garlic to the skillet and cook until fragrant, about 1-2 minutes. Be careful not to burn the garlic.
03 Step
Recipe View 1 mins Transfer the caramelized onion and garlic mixture to a slow cooker.
04 Step
Recipe View 1 mins Pour in the beef stock, brandy, soy sauce, and Worcestershire sauce. Season generously with sea salt and freshly ground black pepper.
05 Step
Recipe View 4 hrs Cover and cook on High for 4-5 hours, or on Low for 7-8 hours, allowing the flavors to meld and deepen.
06 Step
Recipe View 1 mins Preheat your oven's broiler and position the oven rack about 6 inches from the heat source.
07 Step
Recipe View 1 mins Ladle the soup into 3 oven-safe bowls. Top each bowl with croutons and a slice of Provolone cheese.
08 Step
Recipe View 3 mins Place the bowls under the broiler and broil until the cheese is melted, bubbly, and lightly browned, about 2-3 minutes. Watch carefully to prevent burning.
YOU MAY ALSO LIKE
RECIPE REVIEWS
LEAVE A REVIEW
Please Rate
LATEST RECIPES
-
1 -
2 -
3 -
4 -
5
Nelson Witting
Jun 30, 2025This soup is absolutely divine! The caramelized onions make all the difference.
Carlee Okon
Apr 14, 2025Best onion soup I've ever made! The slow cooker makes it so easy and the flavor is amazing.
Malvina Macgyver
Dec 22, 2024I made this for a dinner party, and everyone raved about it. So easy to make in the slow cooker!
Candida Bartell
Nov 7, 2024I added a pinch of red pepper flakes for a little kick. Delicious!
Modesta Fay
Oct 30, 2024The brandy adds such a wonderful depth of flavor. Will definitely make this again.