In a large bowl, mix the oats, buckwheat, and pumpkin pie spice.
Add the date syrup and stir until the oat/buckwheat mixture is evenly coated with the date syrup.
Line a baking sheet with a nonstick mat or parchment paper and pour the granola onto the sheet, spreading it into an even layer, then bake for 20 minutes.
Allow the granola to cool for 1-2 hours on the counter - this is when it will get crunchy.