Line a rimmed baking sheet with aluminum foil for easy cleanup.
Arrange the bacon slices in a single layer on the baking sheet. It's okay if they're snug; just ensure they don't overlap.
Place the baking sheet in the oven and bake for 15 to 20 minutes. Thinner slices may need less time, while thicker slices may need the full 20 minutes.
Once the bacon is golden brown and crispy, remove the baking sheet from the oven.
Transfer the bacon to a plate lined with paper towels to drain any excess grease.