Preheat oven to 350 F and line 2 large, rimmed baking sheets with parchment paper.In a small bowl, combine the orange zest and sugar (2tbsp).In a large mixing bowl, combine the oats (4 cups), walnuts (1.5 cup), cinnamon (1/2 tsp), salt (3/4 cup) and orange/sugar mixture.Pour in the coconut oil and maple syrup. Combine well.Spread the granola onto your prepared baking sheets.Bake for 25 minutes. Mix half way through.Recipe adapted from Cookie and Kate.Serving size: one slightly overflowing ½ cup measure.