Preheat oven to 325°F with convection fan // 350°F without fan // 180°C // Gas mark 4.
Cover dates with hot water and let them soak for 5 - 10 minutes until they are very soft. Then drain and set aside.
While dates are soaking, mix pecans, almonds, pepitas, coconut, oats, salt, pie spice (if using), and coconut oil in a medium bowl.
Spread out the oat and nut mixture on a parchment-lined baking sheet and toast in the oven for 8 - 10 minutes. Remove from oven and set aside to cool.
While the oats are in the oven, chop the soaked dates into small pieces.
In the empty mixing bowl, combine egg, vanilla, nut butter, honey/maple syrup, almond flour, baking powder, and dried fruit. Add toasted nuts and oats. Mix until fully incorporated.
Line a baking sheet with a silicone baking mat or parchment paper, and scoop out 1/4 cup portions (2 ounce). Use your hands to form them into patties. (They'll look a little like hockey pucks) Slightly flatten them, as they will not spread in the oven.
Bake for 16 - 18 minutes, remove from the oven and let cool for 5 minutes on baking sheet before transferring to a cooling rack to cool completely.