Make this recipe a recipe that people in that category can eat. categories: ['low_calorie'], recipe: using a large frying pan, slowly sauté the onions in butter until limp and glazed. transfer to crock-pot. add beef stock, white wine, sherry, worcestershire and garlic. cover and cook on low for 6 to 8 hours. place french bread on a baking sheet. sprinkle generously with cheese. place under preheated broiler until lightly toasted. to serve, ladle soup into bowl. float a slice of toasted french bread on top of each bowl.

Target recipe: melt butter with oil in large saucepan over medium heat. add onions, garlic and sugar and cook until lightly-coloured, stirring occasionally, about 6-7 minutes. add wine and bring to a boil. cook 5 minutes. add stock and bring to simmer. simmer uncovered for 1 ½ hours. season to taste. (can be prepared 1 day ahead) preheat broiler. ladle soup into 6 ovenproof bowls. top with 2 slices of toasted bread each, sprinkle with 1/3 cup swiss cheese each, sprinkle with ½ tsp parmesan cheese each. broil until cheese melts. serve immediately.