French Onion Soup
This French onion soup builds its deep flavor on slowly caramelized onions that turn jammy and golden, then simmered with beef broth and topped with melted Gruyere cheese on crusty bread for a restaurant-quality dish.
⚡Slow Cooker
This French onion soup builds its deep flavor on slowly caramelized onions that turn jammy and golden, then simmered with beef broth and topped with melted Gruyere cheese on crusty bread for a restaurant-quality dish.
Delivery in as fast as one hour.*
Prices vary by store
*Service fees apply. Instacart® and the Instacart logo are registered trademarks of Maplebear Inc. d/b/a Instacart.
Make the caramelized onions: stir together sliced onions, olive oil, and 1 tsp salt in a Suvie pan, ensuring all slices are coated. Fill reservoir, input settings, and cook now or schedule. Cook on slow cook setting low for 12 hours.
Once the onions are done cooking, prepare the soup. Stir beef broth, water, balsamic vinegar, and Worcestershire sauce into pan with caramelized onions. Nestle thyme sprigs into soup and load into upper zone. Cook on slow cook setting low for 6 hours.
After soup has finished cooking, remove pan, stir, and remove thyme sprigs. Place bread slices in a single layer in a clean, dry pan and mound half of shredded cheese on each slice. Insert pan and broil for 10 minutes, or until cheese is bubbling and beginning to brown, rotating pan halfway through cooking.
When cheese toast has finished cooking, remove pan. Divide soup between bowls and place a slice of cheese toast on each. Garnish with thyme, if desired, and serve.
Store cooled soup in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stovetop, then top with bread and cheese and broil just before serving.
Plan for 30-40 minutes of slow cooking on medium heat, stirring occasionally, until the onions are deeply golden and jammy. This develops the soup's signature sweet, complex flavor.
Yes. Make the soup base (onions and broth) up to 2 days ahead and refrigerate. Reheat gently, then top with bread and cheese and broil just before serving.
Swiss cheese or aged cheddar work well as substitutes. Avoid mild cheeses—you need something with enough flavor to stand up to the caramelized onions.
Both deepen the umami and sweetness of the caramelized onions, rounding out the flavor profile and adding subtle complexity without being identifiable.
Use hearty, crusty bread that won't fall apart in the hot broth—sourdough, French bread, or rustic country loaf work best.
Herb Roasted Chicken with Garlic Potatoes and French Green Beans
45 min
Garlic Confit
185 min
French Onion Chicken
65 min
Cajun Spaghetti With Creole Meat Sauce
55 min
BBQ Pork Sandwich
35 min
Soupe au Pistou
120 min
Oven Roasted Ratatouille
65 min
Easy Canapés
15 min
