This is NOT my kind of recipe. Yes, I love cheese, but this thing is a pain to put together and I'm not really into cheese spread...unless it's pimento cheese. I would be willing to try this again ONLY if I used very sharp cheddar. From: Mark Bittman's How to Cook Everything
2 tablespoons butter
2 tablespoons flour
1 tablespoon mustard powder, or to taste
1/2 teaspoon cayenne, or to taste
3/4 cup strong dark beer, like Guinness
2 tablespoons Worcestershire sauce, or to taste
1 pound Cheddar, Double Gloucester or other English cheese (or other good semi-hard cheese, like Comté or Gruyère, or a mixture), grated
4 to 8 pieces lightly toasted bread
1. Put butter in a saucepan over medium heat and, as it melts, stir in flour. Continue to cook, stirring occasionally, until golden brown and very fragrant, 3 to 5 minutes. Stir in mustard and cayenne, then whisk in beer and Worcestershire sauce.
2. When mixture is uniform, turn heat to low and stir in cheese, again stirring until smooth. Remove from heat and pour into a broad container to set (you can refrigerate for up to a day at this point).
3. Spread mixture thickly on toast and put under broiler until bubbly and edges of toast are crisp. Serve immediately.