In a saucepan, melt the butter over medium heat. Stir in the flour and cook for 1-2 minutes until bubbly.

Gradually whisk in the milk, stirring constantly until the mixture thickens.

Remove from heat and stir in the cheddar cheese, Dijon mustard, Worcestershire sauce, hot sauce, salt, and pepper until smooth.

Toast the bread slices until golden brown.

Place the toasted bread on a baking sheet and spoon the cheese sauce generously over each slice.

Broil in the oven for 2-3 minutes until the cheese is bubbly and golden.

Serve immediately, garnished with additional black pepper if desired.