Blueberry Crumble Bars - Ellie Krieger

Ingredients

• 1 medium orange
• 1 1/2 cups blueberries (fresh or frozen, no need to defrost)
• 6 tablespoons maple syrup, divided
• 1/4 cup plus 1 tablespoon neutral oil, such as avocado or canola, divided, plus more for the pan
• 1/2 cup raw walnut halves
• 1/2 cup raw skin-on almonds
• 1/2 cup raw, hulled sunflower seeds
• 1 cup old-fashioned rolled oats (not instant or quick-cooking)
• 3/4 cup whole-wheat flour
• 1 teaspoon ground cinnamon
• 1/4 teaspoon plus a pinch fine salt, divided
• 1 cup (140 grams) pitted prunes or dates, or a combination of both
• 1 large egg
• 1 1/2 teaspoons vanilla extract