INGREDIENTS
•
2 tablespoons unsalted butter
•
2 tablespoons all-purpose flour
•
1 teaspoon Dijon mustard
•
1/2 teaspoon kosher salt
•
1/2 teaspoon freshly ground black pepper
•
1/2 cup porter beer (optional)
•
3/4 cup milk or heavy cream
•
1 cup shredded Cheddar cheese
•
Your favorite toasted bread