Preheat the oven to 325 degrees F. Line an 8-inch square baking pan with parchment paper and spray with nonstick cooking spray.
In a large bowl, mix together the cocoa powder, baking soda, salt and cinnamon. In a separate bowl, mix together the almond butter, syrup, ghee, vanilla and eggs. Mix the wet into the dry and then fold in the walnuts.
Pour the batter into the prepared baking pan. Bake until the brownies are firm but still soft in the middle, 20 to 23 minutes.