Wisconsin Cheddar Cheese Soup

Ingredients

• 1/4 c. butter
• 1/4 c. flour
• 2 1/2 c. milk
• 1 c. beer
• 2 tsp. worcestershire
• 1 1/2 tsp. ground mustard
• 1/2 tsp. salt
• 1/4 tsp. cayenne
• 2 c. shredded cheddar cheese
• croutons