8ounceshigh-quality white chocolate (see post for more on this)
1tablespooncoconut OR canola oil
In a large bowl combine the eggs, light brown sugar, vanilla, flour, baking powder, and salt; whisk well to combine. Set aside.
Preheat oven to 350 degrees (F). Line a 9X13" pan with parchment paper, leaving an inch or so of the parchment paper overlapping on 2 sides of the pan - these will be handy makeshift handles when you need to remove the bars from the pan. Lightly grease the parchment paper with non-stick spray and set aside.
In a large bowl add the quick-cooking oats, old-fashioned oats, cinnamon, nutmeg, macadamia nuts, and cranberries; mix well to combine. Add in the liquid egg/sugar mixture and quickly stir with a rubber spatula until the ingredients are well combined. Pour the mixture into the prepared pan, and evenly press the mixture down into the corners and out to the sides.
Bake in the preheated oven until the center is set and the edges are lightly golden brown, about 15-20 minutes. Allow the the bars cool for 10 minutes in the pan before using the parchment paper sides to lift them from the pan. Use a sharp knife to cut into bars; transfer to a wire rack to cool completely. Store in an airtight container for up to 3 days.
For the White Chocolate Drizzle:
In a small microwave-safe bowl combine the white chocolate and oil. Heat on low, in 30 second increments, stirring between each, until chocolate is completely melted. Whisk smooth and cool for a few minutes. Drizzle white chocolate over each cooled granola bar. Allow chocolate to set before serving.