Prep the dates: Soak medjool dates in warm water for 10 minutes if they are dry. Drain thoroughly.
Blend base: In a food processor, pulse dates until they form a sticky paste.
Add other ingredients: Add tahini, oats, chia seeds, vanilla, and salt. Pulse until clumping.
Optional add-ins: Add cacao nibs or chocolate chips and pulse lightly to combine.
Form balls: Roll tablespoon-sized portions into tight balls using your hands. Lightly dampen hands if sticky.
Chill: Refrigerate for 30 minutes before serving. For longer storage, freeze in an airtight container.