Preheat oven to 160 ℃.
Mix all the dry ingredients together in a large bowl until well combined.
900 g large flake rolled oats, 200 g almonds, 200 g pecans, 200 g walnuts, 125 g cane sugar, ¾ tsp sea salt, 4½ tsps ground cinnamon, 2¼ tsps ground ginger, ½ tsp ground cloves
In a small saucepan, over medium-low heat, warm the coconut oil, maple syrup, treacle, and vanilla.
200 ml coconut oil, 250 ml maple syrup, 100 ml dark treacle, 1 Tbsp pure vanilla extract
Pour the heated liquid mixture over the dry ingredients, and mix well.
Spread the mixture evenly onto 1 or 2 large baking sheet(s) and bake for 18 to 22 minutes, stirring near the half-way point to ensure even cooking. The coconut oil will help this granola crisp up nicely but be sure to watch it carefully as it browns quickly.
Once the granola is visibly browned, remove from the oven and let cool completely before storing in a air-tight container.