When baking bacon, it is best to lay them out in a single layer to ensure even cooking. When bacon sticks together or overlaps, the slices will not cook evenly. In addition, laying the strips out in a single layer ensures that they cook in their drippings, which are rich and delicious. For best results, use a baking sheet with a lip and bake the bacon for approximately 20 minutes. Start checking your bacon strips at about 15 minutes to see if they are done enough.