Add 1/2 cup of hot water and dates to a high-speed blender or food processor. Soak dates for 15 minutes to soften.

Add peanut butter, vanilla extract, a pinch of salt and cinnamon (optional). Blend the date mixture for 2 minutes on high speed or until smooth. Add additional water as needed, one tablespoon at a time, until the dip reaches an ideal thickness for dipping.

Serve immediately with fresh apple slices for dipping. Store any leftover dip in an airtight container and keep in the refrigerator for 2-3 days.