Cheese is a remarkably versatile food, available in literally hundreds of varieties with different flavors and textures. Welsh Rarebit is a savory dish made from melted cheese, often Cheddar, on toasted bread, and a variety of other ingredients such as mustard, egg, or bacon. Here is one take on this classic. Add the grated Cheddar cheese and 2 tablespoons of beer to a saucepan. Place the saucepan over a medium heat, and stir the cheese continuously until it has melted. Add a teaspoon of wholegrain mustard and grind in a little pepper. Keep stirring. When thick and smooth, pour over each piece of toast spreading it to the edges to stop the toast from burning. Place under the grill for a couple of minutes or until golden brown.