Mac N Cheese with Bacon

Name: Mac N Cheese with Bacon
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: American
Ingredients: 120g Salted Butter; 1 Onion, finly chopped; 2 tsp Olive Oil; 6 tbsp Plain Flour; 1.5 pints Whole Milk; 250 Macaroni (dry weight) cooked; 150ml double cream; 250g Cream Cheese; 100g Smoked Cheddar, grated; 80g parmesan, grated; 2 tsp garlic powder; 1 tsp olive oil (instead of truffle oil); pinch salt; 4 tbsp breadcrumbs; 6 rashers streaky bacon; Pack Sausages (10)