Preheat the oven to 325 degrees Fahrenheit (162 degrees Celsius) and gather all the ingredients together.

Add the coconut oil and peanut butter to a microwave-safe large bowl and microwave for about 30 seconds. Mix them well. This peanut butter mixture should be slightly warmer than room temperature, but not hot.

Add the vanilla extract to the bowl and mix well.

Then, add in the egg whites and whisk well.

Add in the dry ingredients: the oats, sweetener, salt, cinnamon, and protein powder, and stir well, using a spatula or spoon.

Finally, add in the hazelnuts and stir.

Line a large baking sheet with a Silpat or parchment paper.

Spoon the granola mixture onto the prepared baking sheet. Spread this wet mixture out so it is about 1/4 inch thick.

Bake this for 35-40 minutes.

When it's done baking, remove the sheet pan from the oven and set it aside to cool on a wire rack.

When the granola has cooled completely, it can be broken up into clusters.

This High-Protein PB Granola is delicious with almond milk and berries, with your favorite yogurt, or in smoothie bowls. The granola clusters are also delicious to snack on.