Arrange baking mat (or parchment paper) onto rimmed baking sheet and then add as many bacon slices that will fit. It’s okay if a few of the slices are touching, just make sure they don’t over lap so they cook evenly.
Place the sheet pan on the center rack of your cold (un pre-heated oven) and THEN set the oven to 400 degrees.
Bake for 17-22 minutes, until golden brown (time will depend on the thickness of your bacon).
Transfer cooked bacon to a paper towel lined plate to absorb grease, and enjoy!!