In this video, Chef John shows you how to make an amazing no-bake macaroni and cheese topped with a crispy potato-chip gratin. Yes, make mac & cheese without heating up the kitchen! Cooked elbow noodles are combined with a simple, cheesy white sauce, and topped with a crispy potato-chip topping. Check out the recipe for Chef John's Crispy Potato Chip Mac & Cheese. This recipe is super versatile: you can make the white sauce and the toasted topping mixture ahead of time and then combine them later with cooked elbow pasta.