Make this recipe a recipe that people in that category can eat. categories: ['low_calorie'], recipe: in a large pot, melt the butter over low heat. add the onions and cook over low heat, stirring frequently, until they are deeply browned, about 2 hours. using a wooden spoon, stir in the dry sherry, sherry vinegar, worcestershire, thyme and a pinch of salt and pepper. cook over low heat until the liquid is reduced slightly, about 2 minutes. add the chicken broth and reduce slightly, about 5 minutes. preheat the broiler. divide the caramelized onions between two shallow, heatproof bowls or serving dishes (such as gratin dishes). cover with the gruyère, dividing it equally between the dishes. broil until the cheese is bubbly and golden brown, about 4 minutes. garnish with the parsley. cool slightly; serve with the baguette slices for dipping.

Target recipe: in medium saucepan, heat butter and saute the onions on low heat for 20-30 minutes until soft and golden brown, stirring often. add the garlic, thyme, salt and pepper and cook another 4-5 minutes. add beef broth and grape juice. cover and simmer for 15 minutes. taste for seasoning. (can be made ahead up to this point.) preheat oven to 400 degrees. place soup in 6 ovenproof bowls. top each bowl with a slice of french bread and about 1/4 cup grated cheese. bake for 5 minutes until cheese has melted. serve at once. serves 6.