Welsh Rarebit

Name: Welsh Rarebit
Ingredients: 1 tablespoon butter; 1 tablespoon flour; 1/2 cup porter beer; 1 teaspoon English mustard powder; 2 or 3 dashes hot sauce, such as Tabasco; 2 or 3 dashes Worcestershire sauce; 5 ounces sharpest Cheddar available, grated (about 2 cups); 5 ounces Stilton, crumbled (about 2 cups depending on how finely it's crumbled); Salt and freshly grated black pepper; Long thin slices of French baguette cut on a bias; Extra-virgin olive oil, for brushing; Cloves of garlic, halved; Thin slices tomato and diced tomatoes, for garnish; Crumbled bacon; Chopped fresh chives