Place the bacon strips in a cold cast-iron skillet, arranging them in a single layer without overlapping.
Set the skillet on the stove over medium-low heat, allowing the bacon to slowly heat up and render its fat.
Cook the bacon for about 10-12 minutes, then use tongs to flip the strips over. Cook for another 3-5 minutes, or until the bacon reaches your preferred level of crispiness.
Once cooked, transfer the bacon to a plate lined with paper towels to drain excess grease.
After cooking, let the bacon fat in the skillet cool down before safely discarding or storing it for future use.