Preheat your oven to 350 degrees f. and line a rimmed sheet pan with parchment paper.
In a large bowl combine the first 6 ingredients.
In a separate bowl whisk the honey together with your hot water and vanilla, until fully combined.
Pour your honey mixture over the oat's mixture.
Thoroughly stir with a spatula until well combined.
Thinly spread this mixture onto your prepared sheet pan.
Cover with a second layer of parchment paper and using a second sheet pan, press until the mixture is evenly flattened, around 1/4 inch thick.
Remove the second parchment paper and bake in your preheated oven for 25-30 minutes, or just until golden.
Allow to cool in the pan before breaking into bark.
Store leftovers in a sealed container in the fridge for 2 weeks or the freezer for 2 months.