Step One
1
Melt butter over low heat. Stir in flour and cook on low for 3 minutes, stirring constantly.
Step Two
2
Stir in evaporated milk, chicken broth, Worcestershire sauce, dry mustard, salt and pepper.
Step Three
3
Increase heat to medium and cook, stirring constantly, until mixture thickens about 8 to 10 minutes.
Step Six
6
Spread mixture in a 9x13 baking dish and cover with remaining 1 cup cheddar cheese.
Step Seven
7
Broil for about 8 to 10 minutes, until cheese is melted and starting to become more golden.