Healthy Blueberry Crumble Bars

Ingredients (for 12 servings)

• 1 cup — oat flour
• 1 cup — old fashioned rolled oats
• ½ cup — coconut sugar
• ½ tsp — sea salt
• 6 tbsp — coconut oil
• 2 tbsp — hemp hearts
• 2 cup — blueberries
• 1 whole — zest of one lemon
• 2 tbsp — water
• 1 tbsp — arrowroot powder or cornstarch