Line an 8×8 or 9×9 baking pan with parchment paper, leaving extra paper on the sides for easy lifting later.

In a large mixing bowl, combine oats, salt, and any dry add-ins like nuts, seeds, or dried fruit. Stir well to distribute everything evenly.

In a saucepan over low heat, melt together peanut butter and honey until smooth and slightly runny. Stir in vanilla extract.

Pour the warm mixture over the oats. Mix thoroughly until everything is well-coated and sticky. If using chocolate chips, let mixture cool slightly before adding them to prevent melting.

Transfer the mixture into the prepared pan. Use a spatula or the bottom of a glass to press firmly—this step is crucial for bars that hold their shape.

Refrigerate for at least 1 hour or freeze for 20–30 minutes. Once firm, lift out using the parchment and slice into bars.

Keep the bars refrigerated for best texture or freeze for long-term storage.