Pulse the oats (optional). For a softer bite, blitz half the oats in a blender or food processor until coarsely ground. Keep the other half whole for chew.
Warm the binder. In a bowl, stir nut butter, sweetener, vanilla, and salt until glossy and smooth. If stiff, microwave for 10–15 seconds to loosen.
Combine dry and wet. Add oats, chia/flax, and your chosen mix-ins. Stir with a sturdy spatula until a thick dough forms. It should hold together when pressed.
Adjust texture. Too crumbly? Add a teaspoon of liquid at a time. Too sticky? Sprinkle in a tablespoon of oats. You're aiming for “play-dough energy.”
Chill for control. Pop the bowl in the fridge for 15–20 minutes to firm up. This makes rolling easier and keeps chocolate chips from melting into chaos.
Roll the bites. Scoop about 1 tablespoon per bite and roll into balls. Slightly damp hands help prevent sticking.
Set and store. Place on a parchment-lined tray and refrigerate for 30 minutes. Transfer to an airtight container.