I was craving a grilled cheese sandwich when I got home from work the other day, but didn't want a traditional cheddar and ham. Enter... the apple-cheddar-bacon-grilled-wich! The flavors went really well together and this will definitely stay in my arsenal of yumminess. I used white cheddar (as it is my boyfriend's fav) and granny smith apples because it's tartness really complimented the sweet and saltiness of the bacon. If you don't like mayonnaise, butter works just as well.