In a large mixing bowl, combine rolled oats, peanut butter, honey, flaxseed meal, and a pinch of sea salt. Mix until everything is well incorporated, forming a sticky mixture.

Fold in your chosen add-ins such as chocolate chips and vanilla extract. Continue stirring until all ingredients are evenly distributed.

If your mixture seems too dry, gradually add more peanut butter or honey. If it's too sticky, sprinkle in extra oats until the texture feels just right.

Scoop about a tablespoon of the mixture and roll it into a tight ball. Place these energy balls on a parchment-lined baking sheet.

Transfer the baking sheet to the refrigerator and let the energy balls chill for at least 30 minutes.

Once chilled, transfer the energy balls to an airtight container. They can be stored in the fridge for up to a week or frozen for up to three months.