Bacon rarebit with apple chutney

Name: Bacon rarebit with apple chutney
Ingredients: 150g/5½oz soft light brown sugar; 100g/3½oz sultanas; 125ml/4½fl oz malt vinegar; 2 eating apples, cored and roughly chopped; 3 tomatoes, roughly chopped; 1 onion, finely chopped; 8 slices dry-cured back bacon; 350g/12oz mature cheddar cheese, grated; 50ml/2fl oz beer; 1 tsp English mustard; 3-4 dashes Tabasco sauce; 1 tsp Worcestershire sauce; 2 tbsp plain flour; sea salt and freshly ground black pepper; 4 slices thickly sliced white bread