Storage: Keep cookies in an airtight container and refrigerate for up to 3 days.
Customisation: Swap peanut butter for almond or cashew butter, or try adding a handful of crushed nuts for extra crunch.
Chocolate Options: Dark chocolate enhances the richness, but milk chocolate can be used for a sweeter flavour.
Sweetness Adjustments: If you like a sweeter cookie, mix in a drizzle of honey or maple syrup.
Gluten-Free Option: Use gluten-free oats if needed.