| Place butter and onion in 2-quart casserole. Cover tightly and microwave on high 3 to 4 minutes or until onion is tender. Stir in flour, dry mustard and cayenne pepper. Gradually stir in milk and beer. Microwave uncovered 6 to 8 minutes, stirring after 4 minutes, until boiling. Stir in Cheese. (Don't let the soup boil after the Cheese has been added, or it will separate.) Microwave uncovered 3 to 4 minutes or until Cheese is melted and mixture is hot. Garnish with shredded carrot or popcorn, if desired. 4 servings (1-1/3 cups each); 455 calories per serving Microwave time: 12 to 16 minutes If using a 500-watt microwave, you may need to increase microwave times. This makes for an unusual wintertime lunch, especially fun when garnished with fresh popcorn. | 
