Prep. Preheat oven to 400 F and line a rimmed baking sheet (note 1) with parchment paper.
Combine + shape. Toss cooked and crumbled bacon (4 pieces), chives (3 tablespoons), and cheese (2 cups) together in a medium bowl. Spread cheese onto the prepared baking sheet in a thin and even layer.
Bake, cool + slice. Bake for 12-14 minutes, or until the cheese starts to brown around the edges. Remove baking sheet from the oven, and allow the cheese to cool slightly. Use a pizza cutter to cut into your desired shape. Cheese chips will continue to harden as they cool. Store in the fridge (note 2), and enjoy!
A rimmed baking sheet is required to catch the excess grease from the cheese, otherwise, it will spill out into your oven.
Storing. Cheese crisps must be stored in the fridge. To re-crisp, simply toss them in the oven for a few minutes.
Nutritional information. Since everyone will cut their chips into different shapes and sizes, the easiest way to calculate is to divide this recipe into 8 servings. 1 serving is reflected in the nutritional information below: