In a medium bowl, combine the oats, nut butter, almond flour or flax, maple syrup or honey, your mix-ins of choice, and salt.
Use a spatula or wooden spoon to combine well. You can switch to clean hands and knead the mixture together if it gets too hard to mix.
Use a spoon or cookie scoop to portion the dough into 12 balls about the size of a ping pong ball. Roll to form a solid ball.
Chill for 1 hour to firm and then move to an airtight container for longer-term storage.
