Make this recipe a recipe that people in that category can eat. categories: ['low_calorie'], recipe: thinly slice onions. melt butter in a large stockpot, once melted add onions. saute onions over medium-low heat until they are soft and clear, about 30 minutes. add pepper, paprika, and worcestershire sauce and saute 10 minutes more. mix all liquid ingredients together with flour and salt. add liquid mixture to stock pot. simmer for 1.5 hours. pour soup into oven-proof crocks and place on a baking sheet. top each crock with a baguette round and large slice of gruyere cheese. sprinkle paremesan cheese over the gruyere. place under broiler until tops are browned and bubbling.

Target recipe: in a large skillet, sauté onions in butter until crisp-tender. transfer to an ungreased 5-quart slow cooker/crock pot. add the broth, worcestershire sauce, and bay leaves. cover and cook on low for 5 to 7 hours or until the onions are tender. discard bay leaves. top each serving with french bread and cheeses.