Make this recipe a recipe that people in that category can eat. categories: ['vegetarian'], recipe: melt butter in heavy large pot over medium heat. add leeks and onion; saute' until tender, about 10 minutes. add mushrooms and saute' 5 minutes. reduce heat to low. add flour; cook until mixture is thick, stirring occasionally, about 3 minutes. gradually stir in stock and half of sherry. bring soup to a boil, stirring. reduce heat and simmer until thickened, about 10 minutes. stir in half-and-half. simmer umtil slightly thickened, about 10 minutes. stir in cayenne pepper. season to taste with white pepper and salt. stir remaining sherry into soup. bring to simmer and serve.

Target recipe: remove thick end of mushroom stem, leaving about 1/2 inch (1 cm) attached to cap. place, smooth side up, in large, shallow glass dish. combine oil, vinegar, thyme, salt and pepper; pour over mushrooms, turning and brushing to coat evenly. let stand for 15 minutes. reserving marinade, place mushrooms, smooth side down, on greased grill over medium-high heat; close lid and cook for 5 minutes. turn and baste with marinade; cook, covered, for about 3 minutes or until mushrooms yield to the touch when pressed. arrange parmesan over top; cook, covered, for about 2 minutes or until melted.